Cobalt Taper Shank Drill (HSCo / M35) for Stainless Steel: Speeds & FeedsDrilling stainless steel (austenitic 304/316) with a cobalt taper shank drill requires precise speeds and aggressive feed to avoid work hardening. This article provides starting parameters for HSCo M35 taper bits: 10–15 m/min surface speed, 0.10–0.20 mm/rev feed, and flood coolant with 8–10% emulsion. We also explain why split point geometry reduces walking on stainless and how to identify genuine 5% cobalt content. Product Description 1.Product Name:tungsten carbide drill bitsTypesTapered chisel bits, Taper...

Using a taper shank drill bit on a radial arm drill press requires proper insertion, drift selection, and speed control.