DRILL BITS FOR STAINLESS STEEL

Stable Drilling with Solid Carbide Drill Bits for Stainless Steel.

video section of D2600 drill bits for steel

D2600-Series

Drill Bit for Stainless Steel Design Highlights

Solid Carbide Construction
Oerlikon TiAISiN Coating Technology
140° Split Point Design
Cutting Edge Preparation
G-Type Flute Geometry
Double Margin Design

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Drill Bit for Stainless Steel Types

3D D2600-Series Drill Bits for Stainless Steel

3×D Internal Coolant Straight Shank Twist Drill

Stable cutting performance with improved hole accuracy and tool rigidity.

P: Steel
M: Stainless Steel
N: Non-ferrous
S: Superalloy
H: Hardened Steel
2 Flutes
3×D
Internal Coolant Design
Oerlikon TiAISiN Coating
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
Solid Carbide Construction
M7

5D D2600-Series Drill Bits for Stainless Steel

5×D Internal Coolant Straight Shank Twist Drill

Deeper hole machining with smooth chip evacuation.

P: Steel
M: Stainless Steel
N: Non-ferrous
S: Superalloy
H: Hardened Steel
2 Flutes
5×D
Internal Coolant Design
Oerlikon TiAISiN Coating
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
Solid Carbide Construction
M7

8D D2600-Series Drill Bits for Stainless Steel

8×D Internal Coolant Straight Shank Twist Drill

Stable deep-hole drilling with internal coolant efficiency.

P: Steel
M: Stainless Steel
N: Non-ferrous
S: Superalloy
H: Hardened Steel
2 Flutes
8×D
Oerlikon TiAISiN Coating
Internal Coolant Design
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
Solid Carbide Construction
M7

D2600-Series

Why Choose Our Drill Bits for Stainless Steel?

For our D2600 series internal coolant carbide drill bits for stainless steel, JINOO has introduced innovative features for our latest geometry design, each unique and brand-protective in the market.

Solid Carbide Construction

Our solid carbide drill bits for stainless steel are manufactured from 0.4μm fine-grain carbide substrates with consistent hardness and toughness.

Oerlikon TiAISiN Coating Technology

We apply the high-performance TiAISiN coating with high coating adhesion and uniform surfaces to improve the performance of drill bits for stainless steel.

140° Split Point Design

Our drill bits for stainless steel are designed with the 140° split point geometry, which features a precisely ground chisel edge.

Cutting Edge Preparation

The micro-honed cutting edges of drill bits for stainless steel are engineered with the micro-chamfer geometry design.

G-Type Flute Geometry

The G-type flutes are designed with a unique helix profile and precisely ground chip channels.

Double Margin Design

Double margins are designed with precision-ground guide surfaces and optimized margin width.

Drill Bit for Stainless Steel Geometry Breakdown

1.0.4 μm Fine-Grain Carbide Substrate for High Strength

JINOO uses 0.4 μm fine-grain carbide substrates to deliver high transverse rupture strength, enabling minimal edge chipping and extended tool life of drill bits for stainless steel.

2.TiAISiN Coating Technology for Less Tool Wear

Advanced TiAISiN coatings can greatly reduce friction and improve oxidation resistance under extremely high temperatures between 900 and 1000°C to minimize tool wear.

3.140° Split Point Design for Accurate Positioning

The 140° point angle is precisely ground to improve the centering abilities with less axial cutting forces.

4.Cutting Edge Preparation for Minimal Micro-Chipping

Honed cutting edges with a controlled edge radius can balance edge strength and sharpness to minimize edge chipping.

5.G-Type Flute Geometry for Efficient Chip Evacuation

Polished G-Type flutes featuring large chip spaces can improve the chip flow to avoid chip clogging.

6.Double Margin Design for Less Vibration

Double margins can deliver sufficient support to decrease tool vibration and improve hole cylindricity and roundness.

7.30° Helix Angle for Stable Chip Flow

The 30° helix angle balances edge sharpness and strength to promote the stable chip flow and less thermal loading.

8.Short Chisel Edge for Easier Penetration

A short chisel edge can reduce the extrusion zone to lower axial cutting forces and improve penetration.

9.Reinforced Core for Higher Tool Rigidity

The reinforced core can enhance the torsional strength with less tool vibration to deliver higher dimensional stability.

10.Optimized Relief Angle for Surface Finishes

The optimized relief angle can decrease flank contact to lower the friction, improving the hole wall surfaces.

Geometry Breakdown of D2600-Series Drill Bits for Stainless Steel

Technical Data

Ultra-fine Grain Substrate	0.4μm
Tolerance	M7
Coating	AlTiN + TiSiN / TiAlSiN-X / AlTiN / TiAlN / TiAlSiN / DLC / AlCrN / AlCrSiN / AlTiSiN / TiSiXN / Customized Available
Flute Number	2
Overall Length	50 / 60 / 75 / 100 / 150 / 200mm / Customized Length
Shank Diameter	4 / 6 / 8 / 10 / 12 / 14 / 16/ 18 / 20mm / Customized Diameter

D2600-Series

Drill Bits for Stainless Steel Specifications

Drill Bits for Stainless Steel Size Range
Carbide Substrate
Quick Selection Guide
Recommended Cutting Parameters

Code		Diameter (mm)	Diameter (in)	Shank Diameter (in)	Overal Length OAL(in)	Flute Length (in)	Shank Length (in)
External Coolant	Internal Coolant	Diameter (mm)	Diameter (in)	Shank Diameter (in)	Overal Length OAL(in)	Flute Length (in)	Shank Length (in)
D2603-NHA-D03175	D2603-CHA-D03175	3.175	0.125	6	62	20	36
D2603-NHA-D03571	D2603-CHA-D03571	3.571	0.1406	6	62	20	36
D2603-NHA-D03970	D2603-CHA-D03970	3.97	0.1563	6	66	24	36
D2603-NHA-D04366	D2603-CHA-D04366	4.366	0.1719	6	66	24	36
D2603-NHA-D04763	D2603-CHA-D04763	4.763	0.1875	6	66	28	36
D2603-NHA-D05159	D2603-CHA-D05159	5.159	0.2031	6	66	28	36
D2603-NHA-D05558	D2603-CHA-D05558	5.558	0.2188	6	66	28	36
D2603-NHA-D05949	D2603-CHA-D05949	5.949	0.2344	6	66	28	36
D2603-NHA-D06350	D2603-CHA-D06350	6.35	0.25	8	79	34	36
D2603-NHA-D06746	D2603-CHA-D06746	6.746	0.2656	8	79	34	36
D2603-NHA-D07145	D2603-CHA-D07145	7.145	0.2813	8	79	41	36
D2603-NHA-D07541	D2603-CHA-D07541	7.541	0.2969	8	79	41	36
D2603-NHA-D07938	D2603-CHA-D07938	7.938	0.3125	8	79	41	36
D2603-NHA-D08344	D2603-CHA-D08344	8.344	0.3281	10	89	47	40
D2603-NHA-D08733	D2603-CHA-D08733	8.733	0.3438	10	89	47	40
D2603-NHA-D09129	D2603-CHA-D09129	9.129	0.3594	10	89	47	40
D2603-NHA-D09525	D2603-CHA-D09525	9.525	0.375	10	89	47	40
D2603-NHA-D09921	D2603-CHA-D09921	9.921	0.3906	10	89	47	40
D2603-NHA-D10320	D2603-CHA-D10320	10.32	0.4063	12	102	55	45
D2603-NHA-D10716	D2603-CHA-D10716	10.716	0.4219	12	102	55	45
D2603-NHA-D11111	D2603-CHA-D11111	11.111	0.4375	12	102	55	45
D2603-NHA-D11509	D2603-CHA-D11509	11.509	0.4531	12	102	55	45
D2603-NHA-D11908	D2603-CHA-D11908	11.908	0.4688	12	102	55	45
D2603-NHA-D12300	D2603-CHA-D12300	12.3	0.4843	14	107	60	45
D2603-NHA-D12700	D2603-CHA-D12700	12.7	0.5	14	107	60	45
D2603-NHA-D13100	D2603-CHA-D13100	13.1	0.5157	14	107	60	45
D2603-NHA-D13891	D2603-CHA-D13891	13.891	0.5469	14	107	60	45
D2603-NHA-D14288	D2603-CHA-D14288	14.288	0.5625	16	115	65	48
D2603-NHA-D14684	D2603-CHA-D14684	14.684	0.5781	16	115	65	48
D2603-NHA-D15083	D2603-CHA-D15083	15.083	0.5938	16	115	65	48
D2603-NHA-D15479	D2603-CHA-D15479	15.479	0.6094	16	115	65	48
D2603-NHA-D15875	D2603-CHA-D15875	15.875	0.625	16	115	65	48
D2603-NHA-D17463	D2603-CHA-D17463	17.463	0.6875	18	123	73	48
D2603-NHA-D19050	D2603-CHA-D19050	19.05	0.75	20	131	79	50


Code		Diameter (mm)	Diameter (in)	Shank Diameter (in)	Overal Length OAL(in)	Flute Length (in)	Shank Length (in)
External Coolant	Internal Coolant	Diameter (mm)	Diameter (in)	Shank Diameter (in)	Overal Length OAL(in)	Flute Length (in)	Shank Length (in)
D2605-NHA-D03175	D2605-CHA-D03175	3.175	0.125	6	62	28	36
D2605-NHA-D03571	D2605-CHA-D03571	3.571	0.1406	6	66	28	36
D2605-NHA-D03970	D2605-CHA-D03970	3.97	0.1563	6	74	36	36
D2605-NHA-D04366	D2605-CHA-D04366	4.366	0.1719	6	74	36	36
D2605-NHA-D04763	D2605-CHA-D04763	4.763	0.1875	6	82	44	36
D2605-NHA-D05159	D2605-CHA-D05159	5.159	0.2031	6	82	44	36
D2605-NHA-D05558	D2605-CHA-D05558	5.558	0.2188	6	82	44	36
D2605-NHA-D05949	D2605-CHA-D05949	5.949	0.2342	6	82	44	36
D2605-NHA-D06350	D2605-CHA-D06350	6.35	0.25	8	91	53	36
D2605-NHA-D06746	D2605-CHA-D06746	6.746	0.2656	8	91	53	36
D2605-NHA-D07145	D2605-CHA-D07145	7.145	0.2813	8	91	53	36
D2605-NHA-D07541	D2605-CHA-D07541	7.541	0.2969	8	91	53	36
D2605-NHA-D07938	D2605-CHA-D07938	7.938	0.3125	8	91	53	36
D2605-NHA-D08344	D2605-CHA-D08344	8.344	0.3281	10	103	61	40
D2605-NHA-D08733	D2605-CHA-D08733	8.733	0.3438	10	103	61	40
D2605-NHA-D09129	D2605-CHA-D09129	9.129	0.3594	10	103	61	40
D2605-NHA-D09525	D2605-CHA-D09525	9.525	0.375	10	103	61	40
D2605-NHA-D09921	D2605-CHA-D09921	9.921	0.3906	10	103	61	40
D2605-NHA-D10320	D2605-CHA-D10320	10.32	0.4063	12	118	71	45
D2605-NHA-D10716	D2605-CHA-D10716	10.716	0.4219	12	118	71	45
D2605-NHA-D11111	D2605-CHA-D11111	11.111	0.4374	12	118	71	45
D2605-NHA-D11509	D2605-CHA-D11509	11.509	0.4531	12	118	71	45
D2605-NHA-D11908	D2605-CHA-D11908	11.908	0.4688	12	118	71	45
D2605-NHA-D12300	D2605-CHA-D12300	12.3	0.4843	14	124	77	45
D2605-NHA-D12700	D2605-CHA-D12700	12.7	0.5	14	124	77	45
D2605-NHA-D13100	D2605-CHA-D13100	13.1	0.5157	14	124	77	45
D2605-NHA-D13891	D2605-CHA-D13891	13.891	0.5469	14	124	77	45
D2605-NHA-D14288	D2605-CHA-D14288	14.288	0.5625	16	133	83	48
D2605-NHA-D14684	D2605-CHA-D14684	14.684	0.5781	16	133	83	48
D2605-NHA-D15083	D2605-CHA-D15083	15.083	0.5938	16	133	83	48
D2605-NHA-D15479	D2605-CHA-D15479	15.479	0.6094	16	133	83	48
D2605-NHA-D15875	D2605-CHA-D15875	15.875	0.625	16	133	83	48
D2605-NHA-D17463	D2605-CHA-D17463	17.463	0.6875	18	143	93	48
D2605-NHA-D19050	D2605-CHA-D19050	19.05	0.75	20	153	101	50

Grain size	Feature	Suitable materials	Advantage
0.2μ	Ultra-fine grain, extremely high hardness, very sharp cutting edge	Hardened steel (HRC60+), stainless steel, titanium alloys, micro-diameter tools	Excellent wear resistance & edge sharpness, ideal for high-precision finishing, but lower toughness
0.4μ	Ultrafine grain, excellent hardness-toughness balance	hardness-toughness balance Hardened steel, stainless steel, alloy steel, precision mold steel	High wear resistance with good edge stability, suitable for finishing & semi-finishing
0.6μ	Fine grain, balanced performance	Carbon steel, alloy steel, stainless steel, cast iron (general conditions)	Good balance of wear resistance and toughness, versatile general-purpose grade
0.7μ	Medium-fine grain, improved toughness	General steel, low-alloy steel, interrupted cutting conditions	Better resistance to chipping, suitable for semi-roughing and unstable cutting
0.8μ	Medium grain, high toughness	Low carbon steel, rough machining, heavy interrupted cutting	Strong impact resistance, suitable for roughing and demanding cutting stability

Materials		Workpiece Materials	Type
ISO		Workpiece Materials	Type
P	P1	Free-Cutting Steel	D2100 / D2200 / D2300 / D2400 / D2600 / D3000 / D5200 / D9100
	P2	Low Carbon Steel（C<0.25%）
	P4	Medium Carbon Steel(0.25%<C<0.60%), Low Alloy Steel
	P5	Alloy Steel, Quenched and Tempered Steel
	P6	High Carbon Steel（C>0.6%）
	P11	Ferritic Stainless Steel, Martensitic Stainless Steel
H	H5	Quenched and Tempered Steel	D2100 / D2200 / D2300 / D2400 / D2600 / D3000
	H7	Bearing Steel
	H8	Tool Steel, High Speed Steel
	H12	Hardened Stainless Steel
	H21	Zinc-Plated Steel
M	M1	Austenitic Stainless Steel	D2100 / D2200 / D2400 / D2600 / D3000 / D5200 / D9100
	M2	High-Strength Austenitic Stainless Steel
	M4	Duplex Stainless Steel
S	S1	Iron-Based Superalloy	D2600 / D9100
	S2	Cobalt-Based Superalloy
	S3	Nickel-Based Superalloy
	S11	Titanium Alloy (Low Alloy)
	S13	Titanium Alloy (High Alloy)
K	K1	Gray Cast Iron	D2100 / D2200 / D2300 / D2400 / D3000 / D5200 / D7200 / D9100
	K2	Compacted Graphite Iron（CGI）
	K3	Malleable Cast Iron
	K4	Ductile Cast Iron
N	N1	Aluminum-Silicon Alloy,Silicon content<9%	D2500 / D2600 / D5200 / D7200 / D9100
	N2	Silicon-Aluminum Alloy,9%<Silicon content<16%
	N3	Silicon-Aluminum Alloy,Silicon content>16%
	N4	Cast Aluminum Alloy
	N5	Wrought Aluminum Alloy
	N10	Copper
	N11	Copper Alloy

Materials	Workpiece Materials		Brinell Hardness	Rockwell Hardness	Cutting Speed Vc (m/min)	Feed Per Revolution fn (mm/rev)
ISO	Workpiece Materials		HB	HRC	External Coolant	3	4	6	8	10	12	14	16	18	20
P	P1	Free-Cutting Steel	<125		80	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	P2	Low Carbon Steel（C<0.25%）	<125		80	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	P11	Ferritic Stainless Steel, Martensitic Stainless Steel	250-450	38-50	50	0.07	0.1	0.12	0.14	0.16	0.18	0.2	0.22	0.24	0.26
	H12	Hardened Stainless Steel		33-50	35	0.05	0.06	0.08	0.11	0.13	0.15	0.17	0.18	0.19	0.2
M	M¹	Austenitic Stainless Steel	<150		50	0.07	0.1	0.12	0.14	0.15	0.18	0.2	0.22	0.24	0.26
	M2	High-Strength Austenitic Stainless Steel	150-230		40	0.07	0.1	0.12	0.14	0.15	0.18	0.2	0.18	0.24	0.26
	M4	Duplex Stainless Steel	135-275		35	0.05	0.06	0.8	0.11	0.13	0.15	0.17	0.15	0.19	0.2
S	S1	Iron-Based Superalloy	160-280	25-48		0.04	0.05	0.06	0.08	0.1	0.12	0.14	0.15	0.16	0.2
	S2	Cobalt-Based Superalloy	250-450	25-48		0.04	0.05	0.06	0.058	0.1	0.12	0.14	0.15	0.16	0.17
	S3	Nickel-Based Superalloy	160-450	<48		0.04	0.05	0.06	0.08	0.1	0.12	0.14	0.105	0.16	0.17
	S11	Titanium Alloy (Low Alloy)	250-350	33-38		0.056	0.06	0.06	0.08	0.11	0.13	0.15	0.16	0.18	0.2
	S13	Titanium Alloy (High Alloy)	300-400	38-48		0.05	0.06	0.06	0.08	0.11	0.13	0.15	0.16	0.18	0.2

Drill Bit for Stainless Steel Application Cases

Stainless Steel Hydraulic Manifold Machining

Background

A precision-machining manufacturer produced stainless steel hydraulic manifolds, and the previously used carbide drill bits could not achieve excellent hole quality and higher production efficiency.

Challenge

Workpiece: Hydraulic Manifold
Material: AISI 316 Stainless Steel
Hardness: HB 170–190
Hole Type: Through Hole
Hole Depth: 3×D
Requirement: Superior hole consistency and less tool wear, reducing the overall costs.

Solution

Tool Used: D2600-Series Internal Coolant Straight Shank Twist Drill
Coolant Type: Internal Coolant
Machine Tool: DMG MORI CMX 1100 V Vertical Machining Center
Spindle Speed:2,200 rpm
Feed Rate: 0.18 mm/rev (396 mm/min)

Results

About 66% extended tool life can be achieved with approximately 90% less cycle time. Chip packing can be avoided to improve the hole quality and production efficiency.

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Real Case of D2600-Series Drill Bits for Stainless Steel

How JINOO Manufactures Drill Bits for Stainless Steel?

Precision CNC Grinding Machines

- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
These high-precision devices are mainly applied for pre-forming carbide rods and manufacturing drill bits for stainless steel with optimized tool geometry and machining stability.
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- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
These high-precision devices are mainly applied for pre-forming carbide rods and manufacturing drill bits for stainless steel with optimized tool geometry and machining stability.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
These high-precision devices are mainly applied for pre-forming carbide rods and manufacturing drill bits for stainless steel with optimized tool geometry and machining stability.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
These high-precision devices are mainly applied for pre-forming carbide rods and manufacturing drill bits for stainless steel with optimized tool geometry and machining stability.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
These high-precision devices are mainly applied for pre-forming carbide rods and manufacturing drill bits for stainless steel with optimized tool geometry and machining stability.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
These high-precision devices are mainly applied for pre-forming carbide rods and manufacturing drill bits for stainless steel with optimized tool geometry and machining stability.
Get instant Quote

Advanced Quality Inspection System

1.ZOLLER G3 Tool Measurement: Applied to perform the verification of the geometry design and dimensions of drill bits for stainless steel, ensuring their measurement tolerances are controlled within ±2 μm.

2.PG1000 Optical Inspection: Used after dimensional verification to make a microscopic analysis of cutting edges and coatings to identify whether there are inconsistencies and micro-chipping.

3.Parlec Tool Presetting: Utilized to inspect the tool length and clamping positioning accuracy to ensure the runout within 3 μm and higher machining repeatability.

We utilize the quality inspection system to achieve comprehensive inspection and quality control of each tool and ensure their dimensional accuracy.
Get instant Quote
1.ZOLLER G3 Tool Measurement: Applied to perform the verification of the geometry design and dimensions of drill bits for stainless steel, ensuring their measurement tolerances are controlled within ±2 μm.

2.PG1000 Optical Inspection: Used after dimensional verification to make a microscopic analysis of cutting edges and coatings to identify whether there are inconsistencies and micro-chipping.

3.Parlec Tool Presetting: Utilized to inspect the tool length and clamping positioning accuracy to ensure the runout within 3 μm and higher machining repeatability.

We utilize the quality inspection system to achieve comprehensive inspection and quality control of each tool and ensure their dimensional accuracy.
Get instant Quote
1.ZOLLER G3 Tool Measurement: Applied to perform the verification of the geometry design and dimensions of drill bits for stainless steel, ensuring their measurement tolerances are controlled within ±2 μm.

2.PG1000 Optical Inspection: Used after dimensional verification to make a microscopic analysis of cutting edges and coatings to identify whether there are inconsistencies and micro-chipping.

3.Parlec Tool Presetting: Utilized to inspect the tool length and clamping positioning accuracy to ensure the runout within 3 μm and higher machining repeatability.

We utilize the quality inspection system to achieve comprehensive inspection and quality control of each tool and ensure their dimensional accuracy.
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Fine-grain Carbide Tool Material

1.JINOO ensures our customers with high-quality carbide tool material sourced from globally recognized suppliers such as GESAC, Kennametal, Sandvik, Gühring, and CB Ceratizit.

2.Featuring high-rigidity carbide substrates, our drill bits for stainless steel can deliver higher heat and wear resistance.

3.The cobalt content in our tungsten carbide substrates is ensured from 10% to 12%.

4.The tool service life of drill bits for stainless steel can be increased by over 1.5 times.
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Virgin Carbide Instead of Recycled Carbide

JINOO’s virgin tungsten carbide used in drill bits for stainless steel:
- Uniform grain size
- No voids
- Higher wear resistance
- Stable lifespan
- High purity
Competitor’s recycled carbide used in manufacturing cheap drills:
- Uneven grain size
- Many defects
- Unstable structure
- Loose structure
- Premature tool wear
- Short tool life
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Reliable Coating Partners

1.JINOO’s drill bits for stainless steel are combined with high-performance TiAISiN coatings from Oerlikon Balzers.

2.We can offer you a wide range of coatings to be combined with drill bits for stainless steel.

3.All the durable coatings feature high density and pure structure to deliver excellent heat and wear resistance.

4.These durable coatings can help carbide drill bits for stainless steel resist premature tool wear.
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High-performance Coating vs. Poor-quality Coating

High-quality coatings used in our drill bits for stainless steel:
- High heat-resistance
- No peeling
- Small tolerances
- Free of pores
- Superior stability
Competitor’s poor-quality coatings used in low-grade drill bits:
- Prone to peeling
- Localized thinning
- Obvious microcracks
- Poor interlayer bonding
- Significant color difference
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ISO 9001 Quality Management System

- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
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- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote
- ISO9001:2008 Certified
- ISO9001:2015 Certified
- SGS Qualified Manufacturer
- TÜV Rheinland Qualified Manufacturer
- Alibaba.com Verified Supplier
- Made-in-China Verified Supplier
- 1688 platforms Verified Supplier
- National High-tech Enterprise
- Changzhou High-Tech Product Certification
JINOO operates under the internationally recognized quality management system, which reveals our standardized production and strict quality control of drill bits for stainless steel. We always achieve compliance with globally respected production and quality standards with excellent tool consistency.
Get instant Quote

Technical Support & Tool Optimization

1.JINOO insists on optimizing the tool selection of drill bits for stainless steel for versatile machining applications.

2.Dimensional accuracy and tight tolerances can be ensured with our regrinding services, and tooling costs can be saved up to 38% after 3 times regrinding.

3.JINOO provides you with comprehensive technical support and reliable after-sales service.
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Testimonials

“ The D2600 series we used as drill bits for 304 stainless steel held up very well, cutting 304 stainless steel even under sub-optimal feeds and speeds, which were the limitations of my CNC. I tried a different brand of popular drill bits on the same job for comparison, and the other drill bit ground itself into a needle due to intense heat. However, JINOO’s D2600-Series internal coolant carbide drill bits came out of the same job intact and still sharp. JINOO is really a reliable carbide drill bit manufacturer. I recommend JINOO’s cutting tools! ”
Richard Romford
General Manager

FAQ about Drill Bits for Stainless Steel

Did you accept OEM for non-standard products of the D2600 series?

As an experienced solid carbide drill supplier, we can fully support OEM and ODM non-standard product customization for carbide drill bits for stainless steel in CNC machining. Our standard cutting diameter was between 3mm and 20mm. If you need the above or below, please share it with us. JINOO’s engineers and technical teams will help you design the best drill bits for stainless steel according to your demand.

How could you guarantee the quality of stainless steel drill bits?

Product quality has always been our priority. For each of the Drill Bits for Stainless Steel, we will pass over 32 different quality check procedures, from the appearance check to the detailed parameters and specifications. We will conveniently record each step into our ERP-integrated system for further tracking. Besides, JINOO has passed the ISO9001:2008 and ISO9001:2015 quality standard approval. To meet your expectations, we have invested 100 million in inspection machinery to ensure that each of our Drill Bits for Stainless Steel is free of defects.

What is your MOQ, the production line, and the lead time?

For our standard D2600-Series Drill Bits for Stainless Steel, we have an MOQ of 10 pieces. However, if you want customized tools according to your demand, the MOQ will vary greatly depending on the specific design and configurations of the tools. You need to pay the design fees in advance. We will refund you when you make the formal order. If it’s just a minor adjustment, there’s no extra charge, and the MOQ will be 15 to 20. Our production times for the tools will be between 7 and 15 days because we need to import the bar stocks from Germany to support the production. For the lead time, we collaborate with an internationally well-known logistics company to ensure the timely delivery.

Why not use cheaper HSS drill bits instead of carbide drill bits for stainless steel?

Although the initial cost of high-speed steel drill bits is lower than that of solid carbide drill bits, they are more prone to excessive tool wear in drilling stainless steel. JINOO’s solid carbide drill bits for stainless steel are specialized for machining harder materials like stainless steel, and they can maintain sharpness for a longer time even under high cutting loads. Carbide drill bits for steel are the optimal choice when higher efficiency and lower cost per hole are required.

What are the types of drill bits for stainless steel?

Many drill bits are made from various materials for machining stainless steel. Different materials give Drill Bits for Stainless Steel different performance and adaptability. The cobalt drill bit for stainless steel can significantly improve the wear-resistance ability and durability, enabling the tools to keep working and preventing quick dulling. The solid carbide drill bits for aluminum are the preferred type for most manufacturers. They are made of tungsten carbide to achieve superior hardness and heat-resistance, supporting higher feed rates and rotation speeds of the tools. Combined with our sharp cutting edges, they will prevent tool breakage during the machining.

What is the best coating for Drill Bits for Stainless Steel?

The coating is crucial for all the drill bits, no matter what kinds of materials are being machined. JINOO has collaborated with Oerlikon Balzers to provide professional coating technology support. We have over 30 different coating options for our clients to choose from. We have applied the special PVD AITiN and TiAIN coating to increase the durability, wear resistance, and lifespan of our D2600-Series Drill Bits for Stainless Steel. The durable coating provides an antioxidant capacity of 1100 degrees.

What is the best drill bit angle for machining stainless steel?

Drill Bits for Stainless Steel have always had two different drill tip point angles: 135° and 140°. JINOO’s latest D2600-Series Drill Bits for Stainless Steel have applied the 140° blunt tip, which offers the unique crack chip breaker edge type. Combined with the 30° helix angle, they can achieve more effective drilling under high-speed machining scenarios. However, JINOO has also fully supported the 135° split blade tip for our clients to choose if they have special requirements.

What are the common mistakes when drilling stainless steel?

Using improper cutting speeds. Machining stainless steel will cause high heat generation. Excessive cutting speeds will damage cutting edges.
Using insufficient coolants. Proper lubrication and coolants are crucial for drilling deep holes. Chip adhesion may lead to work hardening without coolants.
Avoid using standard high-speed steel drill bits, which will lead to rapid tool wear. Solid carbide drill bits for stainless steel with internal coolant technology will deliver superior heat resistance and chip evacuation.

How to drill work-hardened stainless steel?

Drilling work-hardened stainless steel requires precise control of cutting parameters and proper cutting tools. You should choose high-performance solid carbide drill bits for stainless steel, featuring sharp cutting edges. Moreover, stable feeds and speeds are also important. To achieve optimal cutting performance, you need to use sufficient coolants.

Contact our sales team or sign in to find out about all your pricing options.

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ABOUT US

JINOO Tools Group is a “National High-Tech Enterprise”, which was founded in 2006 and specializes in manufacturing high-precision solid carbide cutting tools with over 25,000㎡ manufacturing bases. Our cutting tools, such as drill bits for stainless steel, are widely used in the automotive, aerospace, and equipment manufacturing industries. We have accumulated over 50 national patents and passed the ISO:9001 certification, devoted to creating high-value cutting solutions for our customers.