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Ball Nose End Mills

Smooth 3D Contouring with Ball Nose End Mills

  • Micro Grain Material
  • Reinforced Core Structure
  • High-precision Radius Ball Geometry of Ball Nose End Mills
  • Precise Edge Passivation of Ball Nose End Mills
  • Variable Helix Angle of Ball Nose End Mills
  • advanced coating
  • Micro Grain Material
  • Reinforced Core Structure
  • High-precision Radius Ball Geometry of Ball Nose End Mills
  • Precise Edge Passivation of Ball Nose End Mills
  • Variable Helix Angle of Ball Nose End Mills
  • advanced coating

Benefits of Ball Nose End Mills

  • Micro Grain Material
  • High-precision Ball Radius 
  • Optimized Helix Geometry
  • Advanced Nano Coatings
  • Fine Edge Passivation
  • Reinforced Core Structure

Types of Ball Nose End Mills

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X70 Series - HRC70° Ball Nose End Mills

Ultra wear resistance, high hardness, precision finishing.

  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X68 Series - HRC68° Ball Nose End Mills

Heat resistance, aiti-chipping, stable machining.

  • icon-of-S: Superalloy
    icon-of-S: Superalloy
    S: Super Alloy
  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X65 Series - HRC65° Ball Nose End Mills

Wear resistance, stable cutting performance.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X65 Series - HRC65° 4-Flutes Ball Nose End Mills

High rigidity, anti-vibration, stable contouring.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X60 Series - HRC60° Ball Nose End Mills

General hardened machining, stable cutting performance.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X58 Series - HRC58° Ball Nose End Mills

Wear resistance, wide application.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of M: Stainless Steel
    icon of M: Stainless Steel
    M: Stainless Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X55 Series - HRC55° Ball Nose End Mills

General machining, strong edge, reliable cutting.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of M: Stainless Steel
    icon of M: Stainless Steel
    M: Stainless Steel
  • icon of K: Cast Iron
    icon of K: Cast Iron
    K: Cast Iron
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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X55 Series - HRC55° 4-Flutes Ball Nose End Mills

High rigidity, smooth cutting, reduced vibration.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of M: Stainless Steel
    icon of M: Stainless Steel
    M: Stainless Steel
  • icon of K: Cast Iron
    icon of K: Cast Iron
    K: Cast Iron
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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XT Series - Ball Nose End Mills for Titanium

Heat resistance, anti-adhesion, strong edge strength.

  • icon-of-S: Superalloy
    icon-of-S: Superalloy
    S: Super Alloy
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling

XA Series - Ball Nose End Mills for Aluminum

Low friction, anti-adhesion, smooth chip removal.

  • icon of N: Non-ferrous
    icon of N: Non-ferrous
    N: Non-ferrous
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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XD Series - Deep Slotting Ball Nose End Mill for Steel

Deep flute, smooth evacuation, strong edge.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of K: Cast Iron
    icon of K: Cast Iron
    K: Cast Iron
  • icon-of Slotting
    icon-of Slotting
    Slotting
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XD Series - Deep Slotting Ball Nose End Mill for Aluminum

Large and polished flute,  smooth chip evacuation.

  • icon of N: Non-ferrous
    icon of N: Non-ferrous
    N: Non-ferrous
  • icon-of Slotting
    icon-of Slotting
    Slotting
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XD Series - Micro Deep Slotting Ball Nose End Mill for Steel

Micro diameter, high precision, stable slotting.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of K: Cast Iron
    icon of K: Cast Iron
    K: Cast Iron
  • icon-of Slotting
    icon-of Slotting
    Slotting
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JAS Series - 2-Flute Ball Nose End Mills

Large flute, sharp edge, low resistance.

  • icon of N: Non-ferrous
    icon of N: Non-ferrous
    N: Non-ferrous
  • icon-of Contour Milling
    icon-of Contour Milling
    Contour Milling
  • icon-of Slotting
    icon-of Slotting
    Slotting
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JTS Series - 4-Flute Ball Nose End Mills

Strong core, stable cutting, wear resistance.

  • icon-of-S: Superalloy
    icon-of-S: Superalloy
    S: Super Alloy
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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JHS Series - 2-Flute Ball Nose End Mills

High hardness, anti-chipping, stable cutting.

  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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JMS Series - 2-Flute High Hardness Ball Nose End Mills

High precision, wear resistance.

  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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JHMS Series – 2-Flute Ball Nose End Mills

High-speed machining, heat resistance, long tool life.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon-of-H
    icon-of-H
    H: Hardened Steel
  • icon-of Contour Finishing Milling
    icon-of Contour Finishing Milling
    Contour Finishing Milling
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JPS Series - 2-Flute Heavy-Duty Ball Nose End Mills

Strong core, heavy cutting, high rigidity.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of K: Cast Iron
    icon of K: Cast Iron
    K: Cast Iron
  • icon-of-Contour Roughing Milling
    icon-of-Contour Roughing Milling
    Contour Roughing Milling
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JVS Series - 2-Flute Corner Radius End Mills

Stable cutting, wide application.

  • icon-of-P: Steel
    icon-of-P: Steel
    P: Steel
  • icon of M: Stainless Steel
    icon of M: Stainless Steel
    M: Stainless Steel
  • icon of K: Cast Iron
    icon of K: Cast Iron
    K: Cast Iron
  • icon-of Contour Milling
    icon-of Contour Milling
    Contour Milling

Why choose our high-performance ball nose end mills?

JINOO high-performance ball nose end mills solve different problems during machining, including complex 3D contouring and curved surface finishing. Advanced geometry and coating ensure superior stability when machining aluminum, steel, and stainless steel. Longer tool life also reduces customers’ costs.

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Micro Grain Material

Our ball nose end mills are made of premium micro grain materials with grain sizes ranging from 0.2μm to 0.8μm.

icon of feature box

High-precision Ball Radius

JINOO ball nose end mills feature precision ball geometry with radius tolerance up to  ±0.005mm.

icon of feature box

Optimized Helix Geometry

We provide helix angles of  30°, 35°, 40°, and 45° for different applications. Besides, 35°/38° and 39.5°/40.5° variable helix angles are available.

icon of feature box

Advanced Nano Coatings

JINOO offers Oerlikon Balzers coatings including AlTiN, TiAlN, TiAlSiN, AlCrN, AlCrSiN, DLC, and customized coating solutions for different machining materials.

icon of feature box

Fine Edge Passivation

All the cutting edges undergo fine edge passivation to balance rigidity and sharpness.

icon of feature box

Reinforced Core Structure

Our ball nose end mills use an optimized core diameter to enhance tool rigidity.

Details that make our solid carbide ball nose end mills stand out

  1. Micro Grain Material for Wear Resistance

With ultra-micro grain carbide, our ball nose end mills deliver excellent hardness and ensure stable performance in machining steel, stainless steel, hardened steel, and superalloys.

  1. Precision Ball Radius for Consistent Contouring

The radius tolerance is ±0.005 mm. High ball nose radius accuracy can ensure consistent contour milling.

  1. Optimized Helix Angle for Smooth Cutting

Variable helix angles can enhance the efficiency of chip removal, reduce harmonic vibration, and improve stability in complex 3D surface machining.

  1. Advanced Coatings for Long Tool Life

Advanced coatings, such as TiAlSiN,  AlCrSiN, and DLC, enhance wear resistance and extend tool life. They help improve heat resistance and maintain edge integrity.

  1. Fine Edge Passivation for Edge Strength

Compared with sharp edges, edge passivation technology reduces the risk of edge chipping and improves consistency in continuous cutting. 

  1. Reinforced Core Structure for High Hardness

The reinforced core can increase rigidity and reduce tool vibration.

Geometry Breakdown

Technical Data

Cutting Diameter ToleranceH6
Corner Radius0.2- 2 mm
Radius Tolerance±0.005mm
CoatingAlTiN + TiSiN / TiAlSiN-X / AlTiN / TiAlN / TiAlSiN / DLC / AlCrN / AlCrSiN / AlTiSiN / TiSiXN / Customised Available
Flute Number2 / 4 Flutes / Customised Number
Overall Length50 / 60 / 75 / 100 / 150 / 200mm / Customised Length
Shank Diameter4 / 6 / 8 / 10 / 12 / 14 / 16/ 18 / 20mm / Customised Diameter
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Ball Nose End Mills Specifications

Solid carbide ball nose end mills with different cutting parameters are available.

Type No.DLcRLdSpecification
4B / 2B120.5504R0.5*2*4*50L
4B / 2B1.530.75504R0.75*3*4*50L
4B / 2B241504R1*4*4*50L
4B / 2B2.551.25504R1.25*5*4*50L
4B / 2B361.5504R1.5*6*4*50L
4B / 2B3.571.75504R1.75*7*4*50L
4B / 2B482504R2*8*4*50L
4B / 2B5102.5506R2.5*10*6*50L
4B / 2B6123506R3*12*6*50L
4B / 2B8164608R4*16*8*60L
4B / 2B102057510R5*20*10*75L
4B / 2B122467512R6*24*12*75L
4B / 2B1632810016R8*32*16*100L
4B / 2B20401010020R10*40*20*100L
4B / 2B241754R1*4*4*75L
4B / 2B2.551.25754R1.25*5*4*75L
4B / 2B361.5754R1.5*6*4*75L
4B / 2B361.51004R1.5*6*4*100L
4B / 2B3.571.75754R1.75*7*4*75L
4B / 2B482754R2*8*4*75L
4B / 2B4821004R2*8*4*100L
4B / 2B5102.5756R2.5*10*6*75L
4B / 2B5102.51006R2.5*10*6*100L
4B / 2B6123756R3*12*6*75L
4B / 2B61231006R3*12*6*100L
4B / 2B8164758R4*16*8*75L
4B / 2B81641008R4*16*8*100L
4B / 2B1020510010R5*20*10*100L
4B / 2B1224610012R6*24*12*100L
4B / 2B1632815016R8*32*16*150L
4B / 2B20401015020R10*40*20*150L
Workpiece materialCast iron,carbon steel
550C、HT250、Q235(HRC22)
Alloyed steel,tool steel
P20、H13、D2(HRC25-35)
Heat-treated steel
SKD11、SKH51(HRC55-65)
Designations/min⁻Vf/mm/minap/mmae/mms/min⁻¹Vf/mm/minap/mmae/mms/min⁻Vf/mm/minap/mmae/mm
R0.518000-200001000-12000.02-0.030.03-0.0515000-18000800-10000.02-0.030.03-0.0420000-220001200-14000.02-0.030.03-0.05
R0.7518000-200001000-12000.02-0.030.03-0.0515000-18000800-10000.02-0.030.03-0.0420000-220001200-14000.02-0.030.03-0.05
R115000-180001200-14000.03-0.050.05-0.0813000-150001000-12000.03-0.040.03-0.051800D-200001400-16000.03-0.050.05-0.08
R1.2515000-180001200-14000.03-0.050.05-0.0813000-150001000-12000.03-0.040.03-0.0518000-200001400-16000.03-0.050.05-0.08
R1.515000-180001200-14000.03-0.050.05-0.0813000-150001000-12000.03-0.040.03-0.0518000-200001400-16000.03-0.050.05-0.08
R212000-150001400-16000.05-0.080.08-0.1510000-120001200-14000.04-0.050.05-0.0814000-160001600-18000.05-0.080.08-0.15
R310000-120001600-20000.05-0.10.1-0.158000-100001500-18000.05-0.080.08-0.112000-140001800-20000.05-0.10.1-0.15
R48000-100002200-25000.05-0.120.12-0.26500-85002000-22000.05-0.10.1-0.1210000-120002200-25000.05-0.120.12-0.2
R56500-80002500-28000.08-0.150.15-0.226000-70002200-25000.08-0.120.12-0.157500-85002500-28000.08-0.150.15-0.22
R66000-70002800-30000.1-0.1502-0.255500-65002500-28000.08-0.150.15-0.26500-75002800-30000.1-0.150.2-0.25
R85000-60002000-25000.12-0.1802-034500-55001800-22000.1-0.150.2-0.255500-65002200-25000.12-0.180.2-0.3
R104000-500018DD-22000.15-020.3-044000-50001800-20000.1-0.20.25-0.34500-55002000-22000.15-020.3-0.4
Materials
Workpiece Materials
Type
ISO
P
P1Free-Cutting Steel
UP / UT / UK / UM / US / UHT / UR / S65 / S60 / S58 / S55 / SM / SEU / SR
P2Low Carbon Steel(C<0.25%)
P4Medium Carbon Steel(0.25%<C<0.60%),
Low Alloy Steel
P5Alloy Steel, Quenched and Tempered Steel
P6High Carbon Steel(C>0.6%)
P11Ferritic Stainless Steel, Martensitic Stainless Steel
H
H5Quenched and Tempered Steel
UP / UH / UT / UK / UM / UHT / UR / S68 / S65 / SEU
H7Bearing Steel
H8Tool Steel, High Speed Steel
H12Hardened Stainless Steel
H21Zinc-Plated Steel
M
M1Austenitic Stainless Steel
UP / UK / UM / US / UR / S65 / S60 / S58 / SM / SEU
M2High-Strength Austenitic Stainless Steel
M4Duplex Stainless Steel
S
S1Iron-Based Superalloy
UM / US / UR / SM
S2Cobalt-Based Superalloy
S3Nickel-Based Superalloy
S11Titanium Alloy (Low Alloy)
S13Titanium Alloy (High Alloy)
K
K1Gray Cast Iron
UP / UK / UM / UR / S65 / S60 / S58 / S55 / SEU / SR
K2Compacted Graphite Iron(CGI)
K3Malleable Cast Iron
K4Ductile Cast Iron
N
N1Aluminum-Silicon Alloy, Silicon content<9%
UA / SA / SR
N2Silicon-Aluminum Alloy,9%<Silicon content<16%
N3Silicon-Aluminum Alloy, Silicon content>16%
N4Cast Aluminum Alloy
N5Wrought Aluminum Alloy
N10Copper
N11Copper Alloy
Grain sizeFeatureSuitable materialsAdvantage
0.2μUltra-fine grain, extremely high hardness, very sharp cutting edgeHardened steel (HRC60+), stainless steel, titanium alloys, micro-diameter toolsExcellent wear resistance & edge sharpness, ideal for high-precision finishing, but lower toughness
0.4μUltrafine grain, excellent hardness-toughness balancehardness-toughness balance
Hardened steel, stainless steel, alloy steel, precision mold steel
High wear resistance with good edge stability, suitable for finishing & semi-finishing
0.6μFine grain, balanced performanceCarbon steel, alloy steel, stainless steel, cast iron (general conditions)Good balance of wear resistance and toughness, versatile general-purpose grade
0.7μMedium-fine grain, improved toughnessGeneral steel, low-alloy steel, interrupted cutting conditionsBetter resistance to chipping, suitable for semi-roughing and unstable cutting
0.8μMedium grain, high toughnessLow carbon steel, rough machining, heavy interrupted cuttingStrong impact resistance, suitable for roughing and demanding cutting stability

Real Case

Verified SUS630 50HRC 3D Surface Machining Performance

  1. Customer Background

The customer specializes in manufacturing precision mold parts, so they require excellent surface consistency in complex 3D contour machining. Additionally, they also hope to reduce manual polishing and avoid visible marks.

  1. Challenge
  • Material: SUS630 Precipitation-Hardening Stainless Steel 
  • Hardness: 50 HRC
  • Surface Type: Complex 3D Surface Finish
  • Machining Time: 12 Hours Continuous Machining
  • Requirement: Achieve smooth surface finishes; Avoid white spots and white streak marks; Maintain stability in long-term machining; Reduce tool wear and extend tool life.
  1. Solution
  • Tool Used: JMS2B-GD  2-Flute Ball Nose End Mill
  • Coolant Type: Dry Machining
  • Machine Tool: Changzhun E-850 
  • Depth of Cut: Ap = 0.03 mm, Ae = 0.06 mm
  • Cutting Speed: Vc = 188m/min
  • Spindle Speed: S = 10,000 rpm
  • Feed Rate: F = 1,600 mm/min
  1. Result
  • Surface Quality: Achieved a bright and consistent surface finish.
  • White Spot Control: No while spots.
  • Tool Wear: After 12 hours of continuous machining, maximum wear width: 0.035mm.
  • Stability: The tool exhibited uniform wear without chipping, showing stable finishing performance.
Real Case

How JINOO Manufactures Ball Nose End Mills?

High-precision Equipment

  1. WALTER Helitronic Power 400L  
  2. WALTER Helitronic Vision 400L
  3. WALTER Helitronic Micro 400L  
  4. Rollomatic NP5
  5. ANCA MX5                                   
  6. ANCA MX7

With high-precision equipment, our ball nose end mills feature high quality and show stable performance in steel and stainless steel machining.

High Precision CNC System
Comprehensive Quality Inspection

Complete Inspection System

  1. Zoller G3: Used for inspecting cutting tool geometry.
  2. PG1000: Used for verifying the quality of cutting edges and coatings.
  3. Parlec: Evaluates tool accuracy, runout, and clamping stability.

We use advanced inspection equipment to ensure full control of our ball nose end mill quality. JINOO promises that every ball nose end mill undergoes 100% inspection.

Premium Carbide Material

  1. JINOO uses premium carbide materials from GESAC, Kennametal, Sandvik, Gühring, and CB Ceratizit to improve ball nose end mills’ performance. 
  2. Ensuring high hardness and long tool life even under high-temperature conditions. 
  3. We guarantee that the cobalt content of all materials is 10%-12%.
Premium Carbide Substrate
JINOO Virgin Carbide vs Recycled Carbide

JINOO Virgin Carbide vs Recycled Carbide

JINOO virgin carbide we use in our ball nose end mills:

  1. Ultra-fine grains           
  2. Even cobalt distribution
  3. No impurities or pores 
  4. High-density structures
  5. Strong edge strength    
  6. Extended tool life and superior wear resistance

          Competitor’s Inferior Recycled Carbide:

  1. Coarse grains                     
  2. Uneven cobalt distribution
  3. Many gaps and defects      
  4. Low-density structures
  5. Lack of hardness                
  6. Not durable and easy to wear

Reliable Coating Partner

  1. Cooperates with leading coating supplier Oerlikon Balzers.
  2. Customized coating solutions for different applications are available.
  3. Superior wear resistance and heat resistance, reduced friction, and smooth chip removal.
Advanced Nano Coating
High-quality coating vs Inferior coating

High-performance Coating vs Poor Coating

High-quality coatings used in ball nose end mills:

  1. Bond tightly to the substrate
  2. No peeling or flaking in scratch testing
  3. Consistent thickness with precise tolerance
  4. Dense structures
  5. Smooth surface finish

Competitor’s Poor Coatings used in low-grade end mills:

  1. Weak adhesion and easily peel
  2. Uneven thickness
  3. Loose structures and many defects
  4. Rough surface and unstable performance

Certification & Global Trust

  1. ISO9001:2008 Certified               
  2. ISO9001:2015 Certified
  3. SGS Qualified Manufacturer       
  4. TÜV Rheinland Qualified Manufacturer
  5. Alibaba.com Verified Supplier    
  6. Made-in-China Verified Supplier
  7. 1688 platform Verified Supplier  
  8. National High-tech Enterprise
  9. Changzhou High-tech Product Certification

We strictly control the quality of ball nose end mills. As a reliable supplier, JINOO delivers high-quality end mills to improve machining performance.

Certified Manufacturing
Professional After-sales Service

Professional After-sales Services

  1. Tool selection based on your demands
  2. Cutting parameter optimization backed by the engineering team
  3. Application suggestions in actual machining conditions
  4. Premium regrinding and resharpening service: Regrinding up to 3 times can reduce costs by 38%.

After-sales technical support helps you solve all production problems.

Testimonials

  • “JINOO ball nose milling cutters perform very well when machining aluminum alloy. Their milling cutters have large chip flutes and prevent adhesion. Moreover, we have improved surface finish quality in mold machining after using JINOO ball nose end mills. JINOO tools can maintain hardness at the same time, so the processing efficiency is high. In short, I sincerely recommend JINOO milling tools.”

    testimonial
    David Miller
    Production Manager

Highlights of Ball Nose End Mills

What is your MOQ (Minimum Order Quantity)?

  • For our standard solid carbide end mills, we have a minimum order quantity of only 1 piece. 
  • Beyond that, if you want JINOO to customize tools for you, the minimum order quantity depends on the specific tool design.

What is the lead time for production?

  • Our production times for standard ball nose end mills are typically 5 -12 working days. Due to the premium carbide rods must be shipped from Germany. 
  • The lead time of customized milling cutters depends on the specific design and production schedule. We will offer you a clear delivery time after confirming the customization plan. 
  • Our principle is stable supply and punctual delivery. We work with world-famous postal companies such as DHL, FedEx, and UPS to secure the time of delivery.

Does JINOO provide samples?

Of course. We can provide paid samples for you. You can test cutting performance, stability, and the life of our milling cutters. Through the trial, you can judge whether the sample is suitable and reduce the risk of tool selection. For customers who buy large quantities of our products, we can support a test plan according to specific conditions.

What are your shipments and payments for ball nose end mills?

JINOO supports both air freight and sea freight. Cooperating with international logistics companies, including FedEx, DHL, and UPS, we can ensure the timely delivery of our ball nose end mills. Moreover, we will use shockproof and waterproof packages to protect ball nose end mills.

The payment method for our milling tools can be flexible. We support common payment methods like bank transfer, credit cards, and PayPal. Additionally, we can also adjust the payment terms through consultation.

What is a ball nose end mill used for?

Ball nose end mills are used for machining complex 3D curved surfaces, molds, and precision contours. They are widely used in aerospace, automotive, medical, and precision parts industries.

Key Applications:

  • 3D Curved Surface: Ideal for machining curved surfaces and complex contours.
  • Deep Cavity and Mold Machining: Ball nose end mills maintain rigidity in deep cavity machining.
  • Semi-finishing and Finishing: Deliver continuous and smooth machining performance.

Compared with flat end mills, ball nose end mills show better performance in surface quality and contour accuracy.

What is the difference between ball nose end mills and corner radius end mills?

The main differences between ball nose end mills and corner radius end mills lie in their geometric design, cutting performance, and applications. 

  1. Geometric Design
  • The tip of ball nose end mills is spherical.
  • Corner radius end mills have a flat bottom with a rounded corner radius.
  1. Applications
  • Ball nose end mills are suitable for machining complex curved surfaces, molds, and contours.
  • In contrast, corner radius end mills are suitable for flat surface machining, side milling, and slotting.
  1. Machining Efficiency
  • Ball nose end mills are more suitable for finishing rather than high-removal-rate machining. Because the cutting speed at the center is nearly zero.
  • Corner radius end mills can cut materials at high speed because they have a larger effective cutting area. So, corner radius milling tools are suitable for roughing milling.
  1. Surface Finish
  • Ball nose end mills can achieve continuous curved surface performance and a high-quality surface finish.
  • Corner radius end mills may leave marks in complex contouring.
How to improve the life of carbide ball nose end mills?

The life of ball nose end mills depends on cutting parameters, cooling conditions, and machine stability. You can improve the life of ball nose end mills through the following suggestions: 

  1. Set Appropriate Cutting Parameters
  • Avoid high feed rates.
  • Avoid excessively deep cutting depths.
  • Reduce center load.
  1. Choose Suitable Coatings
  • TiAlN and TiAlSiN coatings for steel and hardened materials.
  • DLC coatings for aluminum and non-ferrous materials.
  1. Correct Cooling and Chip Evacuation Methods
  • Generally, milling cutters only have external cooling when machining high-temperature materials.
  • Aluminum machining is suitable for dry cutting and large chip flutes. 
  1. Improve Cutting Approach
  • Avoid vertical cuts.
  • Use side milling or helix milling to reduce the risk of chipping.
  1. Improve Clamping Accuracy
  • Control the overhang length of end mills to reduce vibration.
  • Reduce spindle runout.

Extending tool life lies in optimizing machining parameters, cutting strategy, and machine stability. In fact, tool failure is often the result of the combined effects of impact, vibration, and heat.

How to choose the right ball nose end mill for 3D contour machining?

When choosing ball nose end mills, you should take machining materials, processing types, and tool rigidity into consideration.

  1. Choose according to material
  • For aluminum and non-ferrous materials, 2-flute ball nose end mills with polished grooves and DLC coatings are the best choice. This type of milling cutter can prevent chip adhesion and ensure smooth chip evacuation.
  • For steel and stainless steel, 3-flute ball nose end mills and 4-flute ball nose end mills are a better choice. This can keep a balance between efficiency and rigidity.
  1. Match the Machining Process
  • Ball nose end mills are ideal for semi-finishing and finishing.
  • For roughing milling, we recommend using flat end mills or high-feed milling cutters.
  1. Consider Tool Rigidity
  • Tapered ball nose end mills are suitable for deep cavity machining.
  • Minimize overhang whenever possible.

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

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ABOUT US

JINOO Tools Group, which was founded in 2006, is devoted to developing and producing solid carbide ball nose end mills. As a national high-tech enterprise, we have over 35000 square meters of production bases, and we can provide stable manufacturing and high-quality products.

Led by a professional engineering team, we continue to optimize tool technology and develop brand-new end mills for global markets. Our cutting tools are widely used in the automotive, aerospace, and precision parts industries. Now, JINOO has obtained over 50 national patents and has passed ISO 9001 certification. We always offer stable and high-efficiency cutting solutions for customers.

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