Harvey Tool 974225 | 270 Degree Sperical Ball 0.0250" Diameter x 1/8" Shank x 0.0213" LOC x 1-1/2" OAL 2FL Uncoated Carbide Undercutting End MillProduct Specifications Mill Diameter (Decimal Inch) 0. 0250" Neck Diameter (Decimal Inch) 0. 0140" Length Of Cut (Decimal Inch) 0. 0213" Neck Length (Decimal Inch) 0. 0310" Neck Length (Inch) 1 32" Overall Reach (Decimal Inch) 0. 0520" Overall Length (Decimal Inch) 1. 5000" Overall Length (Inch) 1 1 2" Radius (Decimal Inch) 0. 0125" Wrap Angle 270 Degree Number of Flutes 2 Shank Diameter (Decimal Inch) 0. 1250" Shank Diameter (Inch) 1 8" Coating