84 make an end mill or slot drill from a standard HSS drill

slot drill cutter   Dan slot wallets

NEE Square Slot Cutter, Wear Resistant High Efficiency Labor Saving Electric Drill Accessories Rectangle Milling Cutters for Single and Double Gang Boxes

NEE Square Slot Cutter, Wear Resistant High Efficiency Labor Saving Electric Drill Accessories Rectangle Milling Cutters for Single and Double Gang Boxes  5MM END MILL 8% COBALT MILLING CUTTER END MILL HIGH SPEED STEEL WITH 8% COBALT CUTTING DIAMETER - OVERALL LENGTH

happy slot 777 4 Flute Milling Cutter Can be used on a drilling press  Tap & Drill Sets · Tap & Die Sets · Thread Mills · Tool Bits · T-Slot Cutters