Transcription of Solid Carbide Drills Speed and Feed Recommendations
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Carbide DrillsSpeed and feed RecommendationsSPEEDS and FEEDS are suggested starting points only and may be increased or decreased depending on actual material and machining conditions. Start conservatively and increase Speed and feed until drilling cycle is MaterialBrinellHardness(BHN) (SFM) feed PER REVOLUTION BY DRILL DIAMETER (IPR)1/16"1/8"1/4"1/2"Low Carbon Steel1018, 12L12, 1108, 1213 & Medium Carbon Steel1018, 1551, 11L44120 - Carbon and Alloyed Steel1040, 1140, 4340, 8640 and Die SteelsP20, A2, D2, H12 and Die SteelsP20, A2, D2, H12250 - Materials, Alloys, Tool Steels40 Rockwell C and Higher Machining Stainless Steels303,410, 416, 440F Machining Stainless Steels304, 316 Machining Stainless Steels17-4PH, 316L, AM350 Iron - Soft Gray Iron.
SPEEDS and FEEDS are suggested starting points only and may be increased or decreased depending on actual material and machining conditions. Start conservatively and increase speed and feed until drilling cycle is optimized. Workpiece Material Brinell Hardness (BHN) Morse List No. Surface Speed (SFM) FEED PER REVOLUTION BY DRILL DIAMETER (IPR)
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