Taper Length 1/4-E RHS / RHC HSS 118 Degree Radial Point High Helix Taper Length Drill - Bright Cleveland List 2550 High-Helix Taper Length Drills Tool Diameter 1/4 inch|E O.A.Length 6-1/8 inch Measurement Type Letter|Fractional Decimal Equivalent 0.2500 inch Coating Bright Cutting Edge Material HSS Shank Type Round Cleveland