Helical Solutions 60035 | HMGC-RN-027-30500-R.030 1/2" Diameter x 1/2" Shank x 5/8" LOC x 1-3/8" Reach x 2-3/4" OAL x 0.0300" Corner Radius 3 Flute Uncoated Solid Carbide Reduced Neck End Mill For Aluminum - Coolant ThroughProduct Specifications Tool Description HMGC RN 027 30500 R. 030 Mill Diameter (Inch) 1 2" Mill Diameter (Decimal Inch) 0. 5000" Number of Flutes 3 Length of Cut (Inch) 5 8" Length of Cut (Decimal Inch) 0. 6250" Material Solid Carbide Overall Length (Inch) 2 3 4" Overall Length (Decimal Inch) 2. 7500" Shank Diameter (Inch) 1 2" Shank Diameter (Decimal Inch) 0. 5000" Finish Coating Uncoated Overall Reach (Inch) 1 3 8" Overall Reach (Decimal Inch) 1.