Harvey Tool 968809 | 0.1406" (9/64) Diameter x 0.1875" (3/16) Shank x 0.2200" LOC x 2.0000" (2) OAL 3 Flutes Uncoated Aluminum Alloys Variable Helix Square End MillOptimized for aluminum and aluminum alloys with excellent performance in copper, brass, and bronze alloys, Harvey Tool's Variable Helix End Mills for Aluminum Alloys Square reduces chatter and harmonics, and improves material removal rates (MRR). h6 shank tolerance for high precision tool holders CNC ground in the USA Center cutting Solid carbide 3 flutes Product Specifications Tool Number 968809 Cutter Diameter (Inch) 0. 1406" (9 64) Length of Cut