Step Drill Bit, 1/8 to 1/2" Dia, Stepped Dill Bit, 1-Flute, 1/4" Dia Shank, Hex Shank, IRWIN Unibit 10231
High speed steel bit with single flute cutting edge for greater control through steps; hex shank prevents slipping in drill chuck. SpeedPoint tip penetrates faster and prevents walking in applications such as drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates.
