The quick change arbor allows you to change cutter heads with a simple push and a turn. Flange stop prevents over-drilling. Replaceable, cobalt-steel pilot drill with split-point tip to prevent walking.
Greenlee 645-1 Hole Cutter Stainless Steel
4-Pack 3.5" Stainless Steel Donut Cutters Traditional Round Doughnut Hole Cutter
98-Hole Stainless Steel Doughnut Cutter Replaceable Roller Blade Doughnut Hole
98-Hole Stainless Steel Doughnut Cutter, Replaceable Roller Blade, Doughnut Hole