Standard Pack = 1 piece(s). Cutting Diameter = 1/4 inch ; Overall Length = 4 inch ; Flute Length = 2 inch ; Shank Diameter = 15/64 inch ; Number of Flutes = 2 ; Material = Carbide Tipped ; Drill Point Angle, type = 118, Cam Relieved, Notch Thinned ; Coating type = Uncoated ; Coolant Fed = No ; Drill Application information = Drilling Holes in High carbon and Hardened steels over 48RC, copper, bronze, brass and high temp alloys. Not for Soft Steels. ;