DescriptionSpecificationsDescriptionJobber Length Drill Bit: 0.3125" Dia, 150 °, Solid Carbide Bright/Uncoated, 3.75" OAL, RH Cut, Parabolic Flute, Straight-Cylindrical Shank, Series 229SpecificationsManufacturer Item No.22931250Manufacturer NameM.A. Ford.