MillCore CNC — Carbide end mill OEM & ODM factory
321 HRC 50–65

321 Hardened Die & Mold Series

Heavy-duty end mills for aggressive material removal in hardened steel.

Application material: Hardened die steel, tool steel, high-strength mold steel

Coating options: AlTiN, TiSiN

321 Hardened Die & Mold Series end mill

Series overview

Built for larger cavities, forging dies and high-wear mold plates, the 321 series emphasizes core strength and stable chip formation at full diameters up to 8 mm.

Flat End Mill
ModelDiameter (mm)Flute Length (mm)Overall Length (mm)Shank (mm)Flutes
TK3E2001-0.2-5004-C450.20.15042
TK3E2002-0.4-5004-C450.40.25042
TK3E2003-0.6-5004-C450.60.45042
TK3E2004-0.8-5004-C450.80.55042
TK3E2005-1-5004-C451.00.65042
TK3E4005-1-5004-C451.00.65044
TK3E2006-1.2-5004-C451.20.85042
TK3E4006-1.2-5004-C451.20.85044
TK3E2007-1.4-5004-C451.41.05042
TK3E4007-1.4-5004-C451.41.05044
TK3E2008-1.6-5004-C451.61.15042
TK3E4008-1.6-5004-C451.61.15044
TK3E2009-1.8-5004-C451.81.35042
TK3E4009-1.8-5004-C451.81.35044
TK3E401-3.0-5004-C453.02.15044
TK3E4015-4.0-5004-C454.03.25044
TK3E402-6.0-5004-C456.04.85044
TK3E4025-7.0-5004-C457.05.65044
TK3E403-8.0-5004-C458.06.45044
TK3E403-8.0-6006-C458.06.46064

Heavy roughing and semi-finishing in large hardened mold cavities.

Corner Radius End Mill
ModelDiameter (mm)Flute Length (mm)Overall Length (mm)Shank (mm)Flutes
M321R020-1.6-500421.65044
M321R030-2.4-500432.45044
M321R040-3.2-750443.27544
M321R050-4-750454.07544
M321R060-6-750466.07544
M321R080-8-750688.07564
M321R100-10-75061010.07564
M321R120-12-75061212.07564
M321R160-16-75061616.07564
M321R200-20-75062020.07564

Reinforced corners for high-stepover roughing of die blocks.

Ball Nose End Mill
ModelDiameter (mm)Flute Length (mm)Overall Length (mm)Shank (mm)Flutes
M321B020-1.6-500421.65042
M321B030-2.4-500432.45042
M321B040-3.2-750443.27542
M321B050-4-750454.07542
M321B060-6-750466.07542
M321B080-8-750688.07562
M321B100-10-75061010.07562
M321B120-12-75061212.07562
M321B160-16-75061616.07562

Large-cavity 3D finishing and parting-line blending.

All specifications are representative. Please confirm exact diameter tolerances, corner radii, coating availability and stock status with sales before placing an order.

Questions about 321 Hardened Die & Mold Series?

Our sales team can recommend the right diameter, coating and geometry for your material. Scan the WhatsApp QR code or email us for a formal RFQ.

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