Greenlee 645-1-3/8 Quick Change Stainless Steel Hole Cutter, 1-3/8-Inch,Greenlee,645-1-3/8" /> Cuts stainless steel quickly and easily Quick change arbor allows you to change cutter heads with a simple push and a turn Use the same arbor for different size cutting heads Flange stop prevents over-drilling Replaceable, cobalt-steel pilot drill with split-point tip to prevent walking