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| Steels | Point Angle | SFM |
| Steel < 180 HB | 118 | 80-110 |
| Steel 180-280 HB | 118 | 45-70 |
| Steel 280-380 HB | 135-140 | 30-45 |
| Steel >380 HB | 135-140 | 15-25 |
| Stainless Steels | Point Angle | SFM |
| Stainless steel 200-300 series | 135-140 | 20-40 |
| Stainless steel 400 series and PH | 118 | 30-60 |
| Cast Iron | Point Angle | SFM |
| Gray cast iron < 180 HB | 90 | 100-150 |
| Gray cast iron 180-200 HB | 118 | 70-100 |
| Gray cast iron - > 200 HB | 118 | 50-70 |
| Ductile/Nodular cast iron | 118 | 70-80 |
| Cast Iron - chilled | 135-140 | 25-35 |
| High-temp alloys | Point Angle | SFM |
| Inconel 600 series | 135-140 | 15-30 |
| Inconel X | 135-140 | 10-15 |
| Hastelloy | 135-140 | 15-30 |
| Titanium and titanium alloys | 135-140 | 20-30 |
| A-286 | 135-140 | 15-25 |
| Monel | 118 | 40-50 |
| Non-ferrous | Point Angle | SFM |
| Aluminum and aluminum alloys | 118 | 200-300 |
| Brass | 111 | 150-250 |
| Bronze | 118 | 100-200 |
| Copper | 118 | 100-200 |
HSS Twist Drill Recommended Feed Rates by Diameter
| Diameter | Feed - IPR |
| 1/4" to 5/16 " | .006" to.010" |
| 3/8" to 7/16" | .008" to.012" |
| 1/2" to 9/16" | .010" to.014" |
| 5/8" to 11/16" | .012" to.016" |
| 3/4" to 13/16" | .013" to.018" |
| 7/8" to 1 1/8" | .015" to .025" |
| 1 1/4" to 1 1/2" | .020" to .040" |
| Over 1 1/2" | .025" and up |
