Wholesale 4 Flutes Ball Nose Carbide End Mills with TiALN Coating Suppliers, Factories

This 4-flute ball nose end mill is crafted from premium solid carbide and features a high-performance TiALN (Titanium Aluminum Nitride) coating, delivering exceptional heat and oxidation resistance. It is specifically designed for contour and profile machining of high-hardness mold steels and alloy steels.

Product Description

Our Standard Sizes
Item code Number of Flute R(mm) Cutting Radius d(mm) Shank Dia F(mm) Flute Length L(mm) Overall Length
APGM4B-R2.0226875
APGM4B-R2.522.561075
APGM4B-R3.02361275
APGM4B-R4.024816100
APGM4B-R5.0251020100
APGM4B-R6.0261224100
APGM4B-R7.0271428100
APGM4B-R8.0281632150
APGM4B-R9.0291836150
APGM4B-R10.02102040150
APGM4BL-R2.0226875
APGM4BL-R2.522.561075
APGM4BL-R3.02361275
APGM4BL-R4.024816100
APGM4BL-R5.0251020100
APGM4BL-R6.0261224100
APGM4BL-R7.0271428100
APGM4BL-R8.0281632150
APGM4BL-R9.0291836150
APGM4BL-R10.02102040150

Other sizes could be made as per customers’ requirement.

Applications
Molds

3D contouring, cavity profiling, semi-finishing for plastic, die-cast, pre-hardened steels (≤HRC50).

Aero and Auto

Curved surfaces on engine parts, blades, structural components in carbon/alloy steel and cast iron.

General Engineering

Radius, fillet, 3D profiling for shafts, brackets, hardware.

Wood and Composites

Smooth contouring for wood, plastics, composites.

Medical

Curved finishing for surgical tools, orthopedic implants.

Special Conditions
Dry cutting: TiAlN coating ensures stable performance in medium-hard steels.
Deep cavity/ramping: 4-flute design enables smooth chip flow.
Semi/finishing: Ra≤0.4μm surface quality on complex shapes.
Advantages
4-flute ball nose design

Smooth chip evacuation, anti-clogging in deep cavities; precision-ground ball nose reduces vibration and yields fine surfaces; balanced rigidity and flexibility for roughing and semi-finishing ≤HRC50 materials.

TiAlN coating

Brown-purple, high chemical stability, hot hardness, oxidation/wear resistance; dry-cut suitable, reduces heat and friction, extends life by 30%+ in high-speed dry cutting.

Material and manufacturing

Ultra-fine grain virgin carbide rods; Rollomatic for small diameters, Walter/ANCA for standard sizes, micron-level accuracy; ISO9001:2015 certified, full-process QC.

Supply and customization

20+ years full-chain experience, stable supply, cost-effective. MOQ 1pc, samples ok; standard 7-25 days, custom 15-25 days; 1M pcs/month capacity. Diameter, length, radius customizable.

Frequently Asked Questions
Q1 Suitable materials and uses?

≤HRC50 carbon/alloy steel, cast iron, pre-hardened mold steel; for 3D contouring, cavity, fillet milling.

Q2 Benefits of 2-flute ball nose?

Great chip clearance in deep cavities, smooth finish, low vibration, works for both rough and finish.

Q3 TiAlN coating features?

Stable chemically, high hot hardness, oxidation/wear resistant; good for high-speed dry cutting, 30%+ longer life.

Q4 Can it machine HRC55+ hardened steel?

This type handles ≤HRC50 only; for harder materials, try our HRC68 series.

Q5 MOQ and delivery?

MOQ 1pc, samples available; standard 7-25 days, custom 15-25 days; 1M pcs/month.

Q6 Customization?

Yes, diameter, length, radius, shank type all adjustable.

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