0.2500" (1/4) Cutter DIA x 0.2500" (1/4) Shank DIA x 18.0000" Major Radius x 0.0625" (1/16) Tip Radius x 0.0313" Corner Radius x 0.1121" Length of Cut x 2.0000" (2) Overall Length Carbide Taper Multi-Axis Finisher for Aluminum, 4 Flutes, NPLUS Coated - (HMAF-AL-40250-12-T45)