Irwin 10220 Unibit Fractional Hole Enlarging Step Drill Bit #20 In Stock Excellent Wear and Abrasion Resistance

Excellent Wear and Abrasion Resistance

Then with the tripod fixture you snap the head of the screw off

Multiple layers of micron-sized moncrystalline diamonds bonded in nickel to a flat metal surface

It provides a tight seal and gives a layer of waterproofing protection

Flexible PVC yet durable

Irwin 10220 Unibit Fractional Hole Enlarging Step Drill Bit #20 In Stock Excellent Wear and Abrasion Resistance"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