Harvey Tool 831178 | 0.0780" (5/64) Diameter x 0.1250" (1/8) Shank x 0.1170" LOC x 1.5000" (1-1/2) OAL 3 Flutes Uncoated Aluminum Alloys Corner Radius Variable Helix End MillDesigned for aluminum and aluminum alloys with excellent performance in copper, brass, and bronze alloys, this variable helix end mill. h6 shank tolerance for high precision tool holders CNC ground in the USA Center cutting Solid carbide 3 Flutes Product Specifications Tool Number 831178 Cutter Diameter (Inch) 0. 0780" (5 64) Length of Cut (Inch) 0. 1170" Overall Length (Inch) 1. 5000" (1 1 2) Corner Radius (Inch) 0. 0150" (1 64) Flutes 3 LOC Multiple