10mm RF100U 3FL Variable Helix Firex Coated Carbide End Mill, Necked, Plain Shank, 22mm LOC, 72mm OAL, 30mm Reach 22MM LOC,10MM SHANK,72MM OAL RF 100 U 3-Flute Right Hand 41?/43?/45 Variable Helix, Right Hand Cut, Plain Cylindrical Shank, Standard Length, Extended Neck Relief, Center Cutting High Performance Carbide End Mill with .10mm x 45? Corner Chamfer, Firex Coated for Roughing, Slotting, Plunging, Ramping and Helical Interpolation in Alloyed Steels & Cast Iron up to 48 HRc. Also Suitable for Titanium / Nickel Alloys and Hardened Steels. Series 3891 Guhring Part #9038910100000