Irwin Unibit 10239 Step Drill Bit, 7/8 to 1-1/8 in Dia, 1-Flute, 7/16 in Dia Shank, Hex Shank Rolair 5230K30CS 5 HP 9 Gall Twin Tank Constant-Run Compressor smooth operation and greater comfort

smooth operation and greater comfort

combined with the power of the multi-volt 36 V battery

The skin is constructed from a high-pressure laminate

Built to withstand the jobsite

Irwin Unibit 10239 Step Drill Bit, 7/8 to 1-1/8 in Dia, 1-Flute, 7/16 in Dia Shank, Hex Shank Rolair 5230K30CS 5 HP 9 Gall Twin Tank Constant-Run Compressor smooth operation and greater comfortHigh 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.