Drill Press Recommended Operating Speeds (in RPM) Drill Type Softwood Hardwood Aluminum Steel You will find here speeds for Twist Drill Bits Brad-point Bits Forstner Bits Hole Saws Spade Bits Circle Cutters Countersinks 2-flute 5-flute Countersink Screw Pilot Bits Plug Cutters
Twist Drills 1/16"-3/16" 1/4"-3/8" 7/16"-5/8" 11/16"-1" 3000 3000 1500 750 3000 1500 750 500 3000 2500 1500 1000 3000 1000 600 350 Brad-point Bits Brad-point Bits 1/8" 1/4" 3/8" 1/2" 5/8" 3/4" 3/8" 1" 1800 1800 1800 1800 1800 1400 1200 1000 1200 1000 750 750 500 250 250 250 Forstner Bits 1/4"-3/8" 1/2"-5/8" 3/4"-1" 1 1/8"-1 1/4" 1 3/8"-2" 2400 2400 1500 1000 500 700 500 500 250 250 Hole Saws 1"-1 1/2" 1 5/8"-2" 2 1/8"-2 1/2" 500 500 250-500 350 250 -- 250 250 250 Spade Bits 1/4"-1/2" 5/8"-1" 1 1/8"-1 1/2" 2000 1750 1500 1500 1500 1000 Circle Cutters 1 1/2-3" 3 1/4"-6" 500 250 250 250 Countersinks 2-flute 5-flute 1400 1000 1400 750 -- 250 -- 250 Countersink Screw Pilot Bits All sizes 1500 1000 Plug Cutters All sizes 1000 500
