Transcription of Twist DRILL-PRESS SPEED CHART drill bit
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Twist DRILL-PRESS SPEED CHART drill bit
106 Get Started in WoodworkingREFERENCE GUIDEM ulti-spur bits* 250 250 Smaller sizes also available; use Forstner (Pine) Hardwood(Hard Maple)AcrylicBrassAluminumSteelNotesTwis t drill bits*300030001500 75030001500 750 500250020001500 NR30001200 750 400300025001500100030001000 600 350 Lubricate bit with oil when cutting steel " or center punch on all holes to prevent drill from & Decker Bullet pilot-point bits*30003000300030003000150030002400160 020001500150015001000 750300020001200 Good all-around more quickly than a brad- point and a Twist bits*18001800180018001800140012001000120 01000 750 750 500 250 250 2501500150015001000 750 750 500 250 NRNRNRNRNRNRNRNRNRNRNRNRNRNRNRNRNRNRNRNR NRNRNRNRR aise smaller bits often to clearshavings and prevent heat buildup. Forstner bits2400240015001000 500 700 500 500 250 250 NR 250 250 250 NRNRNRNRNRNRNRNRNRNRNRNRNRNRNRNRR aise " - " bits often to clear shavingsand prevent heat several shallow plunges with largerbits; allow bit to cool between * 500 500250-500 350 250 NRNRNRNR 250 150 150 250 250 250Do not use with brass or aluminumthicker than ".
Flap sanders Grinding wheels 750 1500 2000 NR 500 1500 2000 NR 500 1500 2000 NR 500 1500 2000 NR NR 2000 2000 NR NR NR 2400 3000 Adhesive-backed discs work best. Use light pressure. Hold work firmly. Use 6" or smaller wheel. Shear-cutting countersinks 1000 750 1000 700 700 700 700-1000 250-700 700-1000 250-700 NR NR NR Not recommended Notes
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