Harvey Tool 798139-C6 | 0.0390" (1 mm) Diameter x 0.2500" (1/4) Shank x 0.0590" LOC x 2.5000" (2-1/2) OAL 6 Flutes AlTiN Nano 2 FL Coated Carbide Hardened Steel Ball End Mill

Designed to mill hardened tool, die, and mold steels up to 55 Rc, this offering of End Mills for Hardened Steels - Ball - For Steels.

• Increased shank diameter to maintain strength and stiffness h6 shank tolerance for high precision tool holders
• Designed to mill hardened tool, die, and mold steels up to 55Rc
• Ball profile for maximum strength
• CNC ground in the USA
• Center cutting
• Solid carbide