Harvey Tool 805520-C3 | 0.0200" (0.5 mm) Diameter x 0.1250" (1/8) Shank x 0.0600" LOC x 1.5000" (1-1/2) OAL x 4 Flutes AlTiN Coated Carbide Miniature Tapered Ball End MillThe reduced neck diameter featured in this line of Harvey Tool Miniature End Mills Ball Long Reach, Standard Flute product helps to avoid heeling. CNC ground in the USA Center cutting Solid carbide Product Specifications Tool Number 805520 C3 Cutter Diameter (Inch) 0. 0200" (. 5 mm) Neck Diameter (Inch) 0. 0192" Length of Cut (Inch) 0. 0600" Neck Length (Inch) 0. 0800" Overall Reach (Inch) 0. 1400" (9 64) Overall Length (Inch) 1. 5000" (1 1 2) Flutes