Hss drill speeds and feedscalculator

Determine the spindle speed (RPM) and feed rate (IPM) for a drilling operation, as well as the cut time for a given cut length. Drilling operations are those in which a cutting tool with sharp teeth, such as a twist drill, rotates and feeds into the workpiece axially, forming a hole with a diameter equal to that of the tool. Calculations use the desired tool diameter, cutting speed, and cutting feed, which should be chosen based on the specific cutting conditions, including the workpiece material and tool material. Learn more about Drilling.

Note: Speeds and Feeds are only general starting points and may vary depending on specific applications. MILLING Working Material Application Cutting Speed fpm Cutting Speed m/min Chip Load ipt Chip Load mm/t ALUMINUM Aluminum (5–8% Si) (356, 308, 242, 208) Rough Milling 2000–5000 610–1525 0.010–0.020 0.254–0.508 Aluminum (5–8% Si) (356, 308, 242, 208) Finish Milling 2000–6000 610–1830 0.005–0.010 0.127–0.254 Aluminum Cast (8–12% Si) (354, 357, 380) Rough Milling 1500–4000 460–1220 0.007–0.015 0.178–0.381 Aluminum Cast (8–12% Si) (354, 357, 380) Finish Milling 1500–5000 460–1525 0.004–0.008 0.102–0.204 Aluminum Cast (12–18% Si) (390) Rough Milling 1000–2000 305–610 0.005–0.010 0.127–0.254 Aluminum Cast (12–18% Si) (390) Finish Milling 1000–3000 305–915 0.002–0.006 0.050–0.150 OTHER MATERIALS Babbitt Milling 700–1100 210–335 0.003–0.010 0.076–0.254 Brass Milling 2000–4000 610–1220 0.001–0.008 0.025–0.200 Bronze Milling 900–1350 275–410 0.003–0.008 0.076–0.200 Carbon Milling 500–2000 150–610 0.0003–0.012 0.008–0.305 Carbon Fiber Materials Milling 500–2000 150–610 0.003–0.015 0.076–0.381 Copper Milling 750–1500 230–460 0.001–0.008 0.025–0.200 Glass Fiber Material Milling 750–1500 230–460 0.001–0.010 0.025–0.254 Green Ceramic Materials Milling 500–1500 150–460 0.002–0.010 0.050–0.254 Unfilled Plastic Milling 1000–4000 305–1220 0.003–0.020 0.076–0.508 Wood Milling 3300–9800 1000–3000 0.004–0.030 0.102–0.762 TURNING Working Material Application Cutting Speed fpm Cutting Speed m/min Chip Load ipt Chip Load mm/t ALUMINUM Aluminum (5–8% Si) (356, 308, 242, 208) Rough Turning 2000–5000 610–1525 0.010–0.025 0.254–0.635 Aluminum (5–8% Si) (356, 308, 242, 208) Finish Turning 2000–6000 610–1830 0.005–0.010 0.127–0.254 Aluminum Cast (8–12% Si) (354, 357, 380) Rough Turning 1500–4000 460–1220 0.007–0.020 0.178–0.508 Aluminum Cast (8–12% Si) (354, 357, 380) Finish Turning 1500–5000 460–1525 0.004–0.008 0.102–0.204 Aluminum Cast (12–18% Si) (390) Rough Turning 1000–2000 305–610 0.005–0.010 0.127–0.254 Aluminum Cast (12–18% Si) (390) Finish Turning 1000–3000 305–915 0.002–0.006 0.050–0.150 OTHER MATERIALS Babbitt Turning 700–1100 210–335 0.003–0.010 0.076–0.254 Brass Turning 2000–4000 610–1220 0.003–0.015 0.076–0.381 Bronze Turning 900–1350 275–410 0.003–0.010 0.076–0.254 Carbon Turning 500–2000 150–610 0.005–0.015 0.127–0.381 Carbon Fiber Materials Turning 500–2000 150–610 0.003–0.020 0.076–0.508 Copper Turning 750–1500 230–460 0.003–0.010 0.076–0.254 Glass Fiber Material Turning 750–1500 230–460 0.001–0.015 0.025–0.381 Green Ceramic Materials Turning 500–1500 150–460 0.002–0.020 0.050–0.508 Unfilled Plastic Turning 1000–4000 305–1220 0.003–0.020 0.076–0.508 Wood Turning 3300–9800 1000–3000 0.004–0.030 0.102–0.762 DRILLING Working Material Application Cutting Speedfpm Cutting Speedm/min Chip Loadipt Chip Loadmm/t ALUMINUM Aluminum(5–8% Si) (356, 308, 242, 208) Drilling 2000–6000 610–1830 0.001–0.010 0.025–0.254 Aluminum Cast(8–12% Si) (354, 357, 380) Drilling 1500–5000 460–1525 0.001–0.010 0.025–0.254 Aluminum Cast(12–18% Si) (390) Drilling 1000–3000 305–915 0.001–0.010 0.025–0.254 OTHER MATERIALS Babbitt Drilling 700–1100 210–335 0.001–0.010 0.025–0.254 Brass Drilling 2000–4000 610–1220 0.001–0.010 0.025–0.254 Bronze Drilling 900–1350 275–410 0.001–0.010 0.025–0.254 Carbon Drilling 500–2000 150–610 0.001–0.010 0.025–0.254 Carbon Fiber Materials Drilling 500–2000 150–610 0.001–0.010 0.025–0.254 Copper Drilling 750–1500 230–460 0.001–0.010 0.025–0.254 Glass Fiber Material Drilling 750–1500 230–460 0.001–0.010 0.025–0.254 Green Ceramic Materials Drilling 500–1500 150–460 0.001–0.010 0.025–0.254 Unfilled Plastic Drilling 1000–4000 305–1220 0.001–0.010 0.025–0.254 Wood Drilling 3300–9800 1000–3000 0.003–0.025 0.076–0.635