IRWIN Unibit Step #9 2X Step Bit

IRWIN Double-Flute Unibit® #9 Step Drill Bits are ideal for drilling holes into thin materials such as stainless steel or sheet metal and offer 2X FASTER DRILLING versus a single-flute design. The dual-flute cutting edges helps to deliver clean holes and 12 defined steps allow for quick drilling of holes 7/8-in and 1-1/8-in in diameter.