IRWIN Tools Unibit Drill Bit, Single Hole Size, 1/2 Inch (10310)

Single-flute cutting edge for greater control Hex shank helps prevent slipping in the drill chuck IRWIN Unibit step drill bits are ideal for drilling holes into thin materials, such as stainless-steel, copper, brass, aluminum, plastic and laminates Drills 1/2" holes, Weight: 0.05 pounds, Manufacturer: IRWIN