DRILLING TOOLS

Solid Carbide Drilling Tools for Versatile Drilling.

Drilling Tool Design Highlights

Solid Carbide Construction
Oerlikon Coating Technology
Self-Centering Point Geometry
Internal Coolant Design
Optimized Flute Geometry
Reinforced Core Structure

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Drilling Tool Types

D2100-Series General Purpose Drill Bits

3×D drilling depths & Internal and external coolant design.

P: Steel
M: Stainless Steel
K: Cast Iron
H: Hardened Steel
Oerlikon HELICA coating
2 Flutes
3×D
5×D
8×D
External Coolant Design
Internal Coolant Design
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
M7

D2200-Series Multi Purpose Drill Bits

3×D and 5×D drilling depths & Internal and external coolant design.

P: Steel
M: Stainless Steel
K: Cast Iron
H: Hardened Steel
Oerlikon HELICA Coating
2 Flutes
External Coolant Design
Internal Coolant Design
3×D
5×D
8×D
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Right-Hand Cutting
140° Point Angle
Drilling
M7

D2300-Series Carbide Drill Bits for Steel

AITiN nano-coating & 3×D and 5×D drilling depths & Internal and external coolant design.

P: Steel
K: Cast Iron
H: Hardened Steel
2 Flutes
External Coolant Design
Internal Coolant Design
Oerlikon AITiN nano Coating
3×D
5×D
8×D
Solid Carbide Construction
Oerlikon AITiN-nano Coating
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
M7

D2400-Series Universal Drills

HELICA coating & 3×D and 5×D drilling depths & Internal and external coolant design.

P: Steel
M: Stainless Steel
K: Cast Iron
H: Hardened Steel
External Coolant Design
Internal Coolant Design
Oerlikon HELICA Coating
4 Flutes
Solid Carbide Construction
3×D
5×D
8×D
Oerlikon HELICA coating
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
Solid Carbide Construction
M7

D2500-Series Drill Bits for Aluminium

5×D drilling depths & Internal and external coolant design.

N: Non-ferrous
External Coolant Design
Internal Coolant Design
3×D
5×D
8×D
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
140° Point Angle
M7

D2600-Series Drill Bits for Stainless Steel

Internal coolant carbide drills with TiAISiN coating and 3×D, 5×D drilling depths.

P: Steel
M: Stainless Steel
N: Non-ferrous
S: Super alloy
H: Hardened Steel
Internal coolant design
Oerlikon TiAISiN Coating
3×D
5×D
8×D
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
M7

D3000-Series Deep Hole Drills

Deep hole drilling tools with 15×D, 20×D, 25×D, 30×D drilling depths and internal coolant design.

P: Steel
K: Cast Iron
N: Non-ferrous
M: Stainless Steel
S: Superalloy
H: Hardened Steel
Internal coolant design
Fine-grain carbide tool material
Oerlikon AITiN-nano coating
8×D
15×D
20×D
25×D
30×D
35×D
40×D
45×D
50×D
Internal Coolant Design
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
135° Point Angle
Solid Carbide Construction
M7

D4000-Series Four-Flute Drill Bits

High feed carbide drill bits with superior tool rigidity and higher machining stability.

P: Steel
M: Stainless Steel
K: Cast Iron
N: Non-ferrous
S: Super alloy
Oerlikon AITiN nano Coating
4 Flutes
3×D
Internal Coolant Design
External Coolant Design
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
140° Point Angle
M7

D5200-Series 3-Flute Drill Bits

AITiN coating & 3×D drilling depths & External coolant design.

P: Steel
M: Stainless Steel
K: Cast Iron
N: Non-ferrous
Oerlikon AITiN Coating
3×D
5×D
8×D
External Coolant Design
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
150° Point Angle

D7200-Series Straight Flute Drills

5×D drilling depths & External coolant design.

P: Steel
M: Stainless Steel
K: Cast Iron
N: Non-ferrous
Oerlikon HELICA Coating
2 Flutes
3×D
5×D
8×D
External Coolant Design
Internal Coolant Design
Solid Carbide Construction
DIN 6535-HA
Right-Hand Cutting
Straight Shank
Drilling
120° Point Angle
M7

D9100-Series NC Center Drill

Suitable for hole positioning with improved machining efficiency.

P: Steel
M: Stainless Steel
K: Cast Iron
N: Non-ferrous
S: Superalloy
BZ: Bronze
2 Flutes
External Coolant Design
BZ: Bronze
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
60° Point Angle
90° Point Angle
120° Point Angle
Solid Carbide Construction
M7

Step Drill Bits

Improved efficiency and stability with one-pass machining.

K: Cast Iron
N: Non-ferrous
3×D
External Coolant Design
Oerlikon Balzers Coating
Solid Carbide Construction
DIN 6535-HA
Straight Shank
Drilling
Right-Hand Cutting
M7

Micro Drill Bits

Suitable for precision machining with higher dimensional accuracy and lower runout.

P: Steel
M: Stainless Steel
K: Cast Iron
N: Non-ferrous
Fine-grain carbide tool material
DIN 6535HA standard
Cylindrical shank
Drilling

Jobber Drill Bits

Suitable for general-purpose machining with standard lengths.

P: Steel
M: Stainless Steel
K: Cast Iron
N: Non-ferrous
Fine-grain carbide tool material
DIN 6535HA standard
Cylindrical shank
Drilling

Tap Drills

Perfect for machining pre-tapping holes with higher precision.

P: Steel
M: Stainless Steel
N: Non-ferrous
Fine-grain carbide tool material
DIN 6535HA standard
Cylindrical shank
Drilling

Indexable Drills

Designed with replaceable inserts to improve machining efficiency.

P: Steel
M: Stainless Steel
K: Cast Iron
S: Superalloy
Fine-grain carbide tool material
DIN 6535HA standard
Cylindrical shank
Drilling

Taper Shank Drills

Perfect for heavy-duty machining of steel, cast iron, and aluminum parts

P: Steel
K: Cast Iron
N: Non-ferrous
Fine-grain carbide tool material
DIN 6535HA standard
Cylindrical shank
Drilling

JINOO

Why Choose Our Drilling Tools?

JINOO’s Drilling Tools feature innovative geometry design and advanced technology to improve drilling performance.

UMG Carbide Substrate

Our high-performance drilling tools are manufactured from fine-grain carbide substrates with a stable structure and high density.

Oerlikon Coating Technology

For every JINOO’s drilling tool, we have applied advanced coating technology (HELICA, AITiN, TiAIN, PERTURA, and DLC, etc) from Oerlikon Balzers to enhance heat and oxidation resistance.

Self-Centering Point Geometry

Our drilling tools can achieve hole tolerances up to H7 with self-centering point design and optimized chisel edge thinning.

Internal Coolant Design

All the drilling tools are designed with efficient internal coolant channels to decrease heat generation and prevent heat buildup.

Optimized Flute Geometry

Our drilling tools boast a unique flute design to promote the chip flow and maintain stable machining performance.

Reinforced Core Structure

The reinforced core structure can maximize the drilling stability with Vc up to 120 m/min even under extremely heavy cutting loads.

Drilling Tool Geometry Breakdown

1.Solid Carbide Construction for Higher Wear Resistance

Our drilling tools are made from 0.4 μm ultra-fine grain carbide with high transverse rupture strength and high density, minimizing micro-chipping.

2.Oerlikon Coating Technology for Longer Tool Life

AlTiN and TiAlN-based coatings can deliver unmatched heat and oxidation resistance even under high temperatures of nearly 900°C. They can decrease tool friction with minimal edge buildup.

3.Self-Centering Point Geometry for Accurate Hole Positioning

The specialized 140° point angle with the thinned chisel edge can decrease thrust forces by approximately 30%, promoting the precision hole positioning with improved hole accuracy.

4.Internal Coolant Design for Superior Thermal Control

Efficient internal coolant channels can deliver higher heat dissipation and promote the chip flow to maintain drilling stability, even under 12×D drilling depth.

5.Optimized Flute Geometry for Efficient Chip Evacuation

Polished flutes with optimized rake and helix angles can decrease chip packing risk to ensure smooth chip flow.

6.Reinforced Core Structure for Drilling Stability

The reinforced core can deliver higher torsional strength and less tool vibration, improving the hole straightness and roundness.

Technical Data

Ultra-fine Grain Substrate	0.4μm
Cutting Diameter Tolerance	M7
Coating	AlTiN + TiSiN / TiAlSiN-X / AlTiN / TiAlN / TiAlSiN / DLC / AlCrN / AlCrSiN / AlTiSiN / TiSiXN / Customised Available
Flute Number	2 / 3 / 4
Overall Length	50 / 60 / 75 / 100 / 150 / 200mm / Customised Length
Shank Diameter	4 / 6 / 8 / 10 / 12 / 14 / 16/ 18 / 20mm / Customised Diameter

Drilling Tool Specifications

Drilling Tool Size Range
Carbide Substrate
Quick Selection Guide
Recommended Cutting Parameters

External Coolant	Internal Coolant	Diameter (mm)	Diameter (in)	Shank Diameter (in)	Overal Length OAL (in)	Flute Length (in)	Max Cutting Depth (in)	Shank Length (in)
D2403-NHA-D03175	D2403-CHA-D03175	3.175	0.125	6	62	20	14	36
D2403-NHA-D03571	D2403-CHA-D03571	3.571	0.1406	6	62	20	14	36
D2403-NHA-D03970	D2403-CHA-D03970	3.97	0.1563	6	66	24	17	36
D2403-NHA-D04366	D2403-CHA-D04366	4.366	0.1719	6	66	24	17	36
D2403-NHA-D04763	D2403-CHA-D04763	4.763	0.1875	6	66	28	20	36
D2403-NHA-D05159	D2403-CHA-D05159	5.159	0.2031	6	66	28	20	36
D2403-NHA-D05558	D2403-CHA-D05558	5.558	0.2188	6	66	28	20	36
D2403-NHA-D05949	D2403-CHA-D05949	5.949	0.2344	6	66	28	20	36
D2403-NHA-D06350	D2403-CHA-D06350	6.35	0.25	8	79	34	24	36
D2403-NHA-D06746	D2403-CHA-D06746	6.746	0.2656	8	79	34	24	36
D2403-NHA-D07145	D2403-CHA-D07145	7.145	0.2813	8	79	41	29	36
D2403-NHA-D07541	D2403-CHA-D07541	7.541	0.2969	8	79	41	29	36
D2403-NHA-D07938	D2403-CHA-D07938	7.938	0.3125	8	79	41	29	36
D2403-NHA-D08344	D2403-CHA-D08344	8.334	0.3281	10	89	47	35	40
D2403-NHA-D08733	D2403-CHA-D08733	8.733	0.3438	10	89	47	35	40
D2403-NHA-D09129	D2403-CHA-D09129	9.129	0.3594	10	89	47	35	40
D2403-NHA-D09525	D2403-CHA-D09525	9.525	0.375	10	89	47	35	40
D2403-NHA-D09921	D2403-CHA-D09921	9.921	0.3906	10	89	47	35	40
D2403-NHA-D10320	D2403-CHA-D10320	10.32	0.4063	12	102	55	40	45
D2403-NHA-D10716	D2403-CHA-D10716	10.716	0.4219	12	102	55	40	45
D2403-NHA-D11111	D2403-CHA-D11111	11.111	0.4375	12	102	55	40	45
D2403-NHA-D11509	D2403-CHA-D11509	11.509	0.4531	12	102	55	40	45
D2403-NHA-D11908	D2403-CHA-D11908	11.908	0.4688	12	102	55	40	45
D2403-NHA-D12300	D2403-CHA-D12300	12.3	0.4843	14	107	60	43	45
D2403-NHA-D12700	D2403-CHA-D12700	12.7	0.5	14	107	60	43	45
D2403-NHA-D13100	D2403-CHA-D13100	13.1	0.5157	14	107	60	43	45
D2403-NHA-D13891	D2403-CHA-D13891	13.891	0.5469	14	107	60	43	45
D2403-NHA-D14288	D2403-CHA-D14288	14.288	0.5625	16	115	65	45	48
D2403-NHA-D14684	D2403-CHA-D14684	14.684	0.5781	16	115	65	45	48
D2403-NHA-D15083	D2403-CHA-D15083	15.083	0.5938	16	115	65	45	48
D2403-NHA-D15479	D2403-CHA-D15479	15.479	0.6094	16	115	65	45	48
D2403-NHA-D15875	D2403-CHA-D15875	15.875	0.625	16	115	65	45	48
D2403-NHA-D17463	D2403-CHA-D17463	17.463	0.6875	18	123	73	51	48
D2403-NHA-D19050	D2403-CHA-D19050	19.05	0.75	20	131	79	55	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	Internal Coolant	3	4	6	8	10	12	14	16	18	20
P	P1	Free-Cutting Steel	<125		90	100	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		90	100	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	P4	Medium Carbon Steel(0.25%<C<0.60%), Low Alloy Steel	<220	<25	85	100	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	P5	Alloy Steel, Quenched and Tempered Steel	<330	28-35	85	100	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	–	60	0.07	0.1	0.12	0.14	0.16	0.18	0.2	0.22	0.24	0.26
H	H5	Quenched and Tempered Steel		35-40	45	60	0.07	0.1	0.12	0.14	0.16	0.18	0.2	0.22	0.24	0.26
H	H12	Hardened Stainless Steel		33-50	–	45	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		–	60	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		–	55	0.07	0.1	0.12	0.14	0.15	0.18	0.2	0.22	0.24	0.26
	M4	Duplex Stainless Steel	135-275		–	45	0.05	0.06	0.08	0.11	0.13	0.15	0.17	0.18	0.19	0.2
K	K1	Gray Cast Iron	120-290	<32	90	100	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	K2	Compacted Graphite Iron（CGI）	120-290	<32	90	100	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	K3	Malleable Cast Iron	130-260	<28	90	100	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3
	K4	Ductile Cast Iron	180-350	<43	70	80	0.07	0.1	0.13	0.16	0.18	0.2	0.22	0.25	0.28	0.3

How JINOO Manufactures Drilling Tools?

Precision CNC Grinding Machines

- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
German advanced machinery is the strong manufacturing foundation of JINOO. JINOO utilizes the advanced 5-axis CNC grinding machines to create high-quality drilling tools, enabling their longer tool service life.
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- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
German advanced machinery is the strong manufacturing foundation of JINOO. JINOO utilizes the advanced 5-axis CNC grinding machines to create high-quality drilling tools, enabling their longer tool service life.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
German advanced machinery is the strong manufacturing foundation of JINOO. JINOO utilizes the advanced 5-axis CNC grinding machines to create high-quality drilling tools, enabling their longer tool service life.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
German advanced machinery is the strong manufacturing foundation of JINOO. JINOO utilizes the advanced 5-axis CNC grinding machines to create high-quality drilling tools, enabling their longer tool service life.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
German advanced machinery is the strong manufacturing foundation of JINOO. JINOO utilizes the advanced 5-axis CNC grinding machines to create high-quality drilling tools, enabling their longer tool service life.
Get instant Quote
- WALTER Helitronic Power 400L
- WALTER Helitronic Vision 400L
- WALTER Helitronic Micro 400L
- Rollomatic NP5
- ANCA MX5
- ANCA MX7
German advanced machinery is the strong manufacturing foundation of JINOO. JINOO utilizes the advanced 5-axis CNC grinding machines to create high-quality drilling tools, enabling their longer tool service life.
Get instant Quote

Advanced Quality Inspection System

1. ZOLLER G3 Tool Measurement: Used to perform the inspection of the geometry design of drilling tools, like diameter consistency and flute symmetry, ensuring their measurement capability of about ±2 μm.

2. PG1000 Optical Inspection: Applied for verifying the cutting edges and coating conditions of drilling tools with magnification levels up to 200× to avoid edge defects.

3. Parlec Tool Presetting: Utilized for inspecting the tool length accuracy and runout control, ensuring accurate positioning and machine compatibility.

JINOO employs world-class quality testing equipment from Germany and the United States to improve the consistency of all the drilling tools. Moreover, the ERP traceability system has been introduced to monitor the production stage.
Get instant Quote
1. ZOLLER G3 Tool Measurement: Used to perform the inspection of the geometry design of drilling tools, like diameter consistency and flute symmetry, ensuring their measurement capability of about ±2 μm.

2. PG1000 Optical Inspection: Applied for verifying the cutting edges and coating conditions of drilling tools with magnification levels up to 200× to avoid edge defects.

3. Parlec Tool Presetting: Utilized for inspecting the tool length accuracy and runout control, ensuring accurate positioning and machine compatibility.

JINOO employs world-class quality testing equipment from Germany and the United States to improve the consistency of all the drilling tools. Moreover, the ERP traceability system has been introduced to monitor the production stage.
Get instant Quote
1. ZOLLER G3 Tool Measurement: Used to perform the inspection of the geometry design of drilling tools, like diameter consistency and flute symmetry, ensuring their measurement capability of about ±2 μm.

2. PG1000 Optical Inspection: Applied for verifying the cutting edges and coating conditions of drilling tools with magnification levels up to 200× to avoid edge defects.

3. Parlec Tool Presetting: Utilized for inspecting the tool length accuracy and runout control, ensuring accurate positioning and machine compatibility.

JINOO employs world-class quality testing equipment from Germany and the United States to improve the consistency of all the drilling tools. Moreover, the ERP traceability system has been introduced to monitor the production stage.
Get instant Quote

Fine-grain Carbide Tool Material

1.JINOO’s drilling tools are all manufactured from fine-grain carbide tool material with higher hardness and rigidity.

2.High-quality carbide substrates from GESAC, Kennametal, Sandvik, Gühring, and CB Ceratizit can enhance the durability and wear resistance of drilling tools.

3.The optimized cobalt content in our tungsten carbide typically ranges from 10% to 12%.

4.The tool life of our drilling tools is commonly enhanced by up to 1.5 times with the premium raw material.
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Virgin Carbide Instead of Recycled Carbide

JINOO’s Virgin Carbide used in our drilling tools:
- High hardness
- High rigidity
- No impurities
- High density
- Excellent wear resistance
- Long tool life
Competitor’s Inferior Recycled Carbide:
- Inconsistent grains
- Low density
- Many impurities
- Unstable structure
- Short tool life
- Loose structure
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Reliable Coating Partners

1.JINOO employs the advanced coating technology from Oerlikon Balzers for our drilling tool.

2.JINOO can customize drilling tools with a wide range of coating selections to suit different machining requirements.

3.The durable coatings can greatly decrease tool friction and improve their wear resistance.

4.Combined with the durable coatings, our drilling tools can have longer tool life than other standard tools.
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High-performance Coating vs. Poor-quality Coating

High-quality coatings used in our drilling tools:
- Tight tolerances
- No pores and cracks
- High density
- High wear resistance
- Smooth surface finishes
Competitor’s Inferior Coatings used in low-grade drill bits:
- Weak adhesion
- Uneven coating thickness
- Low density
- Rapid tool wear
- Short tool life
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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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
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 well-renowned quality management system to demonstrate our commitment to production procedures and quality control, ensuring our excellent product consistency and manufacturing reliability.
Get instant Quote

Technical Support & Tool Optimization

1.JINOO can provide you with reliable after-sales services to ensure your experience of using our drilling tools.

2.OEM and ODM services are also available with a flexible MOQ from 1 to 10 pieces.

3.You can also believe in our proper re-grinding services and long-term warranty to maintain your drilling tools.
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Testimonials

“I have been collaborating with JINOO, which is a reliable, solid carbide twist drill manufacturer, for many years, and they always excel because of their outstanding product quality, cutting stability of drilling tools, and timely delivery. For instance, the D2600-Series Drill Bits for Stainless Steel can achieve amazing drilling performance when machining stainless steel with higher dimensional accuracy and efficiency. ”

Bob Richard
Procedure Associate

FAQ about Drilling Tools

Do you provide customized services of drilling tools?

Of course! We furnish non-standard customization of drilling tools beyond standard sizes according to your needs. Factors like materials, diameter, flute length, and coating selection can all be modified to meet your exact requirements, and we will offer you cutting-edge solutions to ensure an outstanding user experience.

What is your MOQ (Minimum Order Quantity) of drilling tools?

For our standard size of drilling tools, we have a minimum order quantity of 5 pieces. Beyond that, if you want JINOO to customize tools for you, there’s generally no minimum order quantity for non-standard tools, and even a small order can be accepted.

What payment methods do you accept for drilling tools?

The payment method of our drilling tools can be flexible; we usually accept bank transfer, credit card, and PayPal.If you have other requirements about the payment method, we can modify it based on your order.

What are the types of drilling tools for CNC machining?

JINOO’s drilling tools contain solid carbide drill bits, deep hole drill bits, step drill bits, and center drills.

Solid carbide drill bits can be applied to variable cutting conditions in general CNC machining and most hole-making applications.

Step drill bits and center drills can also be used to process accurate holes of multiple diameters. Each different drill has a specific cutting purpose, and solid carbide twist drills are perfect for general-purpose machining.

How to choose the right drilling tools for different materials?

You must consider workpiece materials, hole depths, and cutting conditions for your machining.

For most of our drilling tools, we use durable tungsten carbide as a raw material. Combined with wear-resistant coatings (AITiN, Tin, PERTURA, HELICA, etc.), they can greatly increase heat and wear resistance.

Additionally, choose internal coolant drill bits with proper coating to enhance heat resistance if the workpiece materials are highly abrasive, such as fiberglass or composites.

Drilling tools’ geometry is also essential in the tool design. For hard materials, the point angle design should be flatter, approximately 135°, to prevent premature dulling. For soft materials, a sharper angle of 118° or less should be used.

In conclusion, tougher drill bits, usually made from carbide or cobalt, should be used for machining hard materials. For soft and layered materials, drilling tools with a sharper point angle and a unique tip should be used.

What are the differences between Carbide, HSS, and Cobalt Drilling Tools?

Carbide drilling tools are made from tungsten carbide to ensure the exceptional quality of our products.

High-speed steel (HSS) is a tough material commonly used in manufacturing drilling tools at lower prices, and HSS drill bits are suitable for drilling with less rigid setups.

Cobalt is the HSS mixed with a certain percentage of the cobalt alloy (typically between 5% and 8%), which is much harder and heat-resistant than regular HSS. Therefore, cobalt drilling tools can drill stainless steel and other hard steel without dulling quickly.

What are deep hole drilling tools?

Deep hole drills are specialized for drilling holes with depth-to-diameter ratios of more than 10×D. Deep hole drills are commonly designed with internal coolant channels and optimized flutes to deliver smoother chip evacuation with less heat generation.

What drilling tools are best for stainless steel?

Solid carbide drill bits with durable coatings such as TiAlSiN or AITiN are ideal for machining stainless steel. They feature high heat resistance to further decrease the tool wear. We recommend you use solid carbide drill bits with internal coolant channels and optimized point angle design, enabling higher drilling stability in stainless steel machining.

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 high-performance drilling tools 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.