Irwin 10220 Unibit Fractional Hole Enlarging Step Drill Bit #20 Rust Inhibitive Size: 12"L

Size: 12"L

All season protection against drafts

Ease-of-use for those who suffer with arthritis

Cuts straight and wide curves (when trimming light gauge stock)

Irwin 10220 Unibit Fractional Hole Enlarging Step Drill Bit #20 Rust Inhibitive Size: 12"L"IRWIN" ENLARGING STEP DRILL BIT Drills 9 16" to 1" holes in 1 16" increments. Has 8 steps on bit. High speed steel bit. Single flute cutting edge for greater control through steps. Cutting edge provides a true round hole. Three flatted shank (1 2")prevents slipping in drill chuck. Ideal for drilling holes into thin materials such asstainless steel, copper, brass, aluminum, plastic and laminates. Pilot hole required. Carded. WARNING: Cancer and