[note: All Speeds Are In Feet/min]. *multiply The Listed Speeds By A Factor Of 2 To 4 When Using Carbide Tooling

Table of Speeds and Feeds · Cutting Speeds for High Speed Steel* tooling. [Note: All speeds are in feet/min]. *Multiply the listed speeds by a factor of 2 to 4 when using carbide tooling. Material Type Turning Aluminium 400 - 1000 Brass 225 - 300 Bronze 150 - 225 Cast Iron, soft 100 - 150 Cast Iron, medium 75 - 120 Cast Iron, hard 50 - 90 Copper 100 - 200 Magnesium 600 - 1200 Stainless Steel: free machining 100 - 150 other grades 40 - 85 Carbon and Alloy Steel: free machining 125 - 200 less than 0.3% C 75 - 175 0.3% to 0.6% C 65 - 120 more than 0.6% C 60 - 80 Titanium 25 - 55

Drilling 250 - 600 150 - 300 100 - 250 75 - 150 70 - 110 60 - 100 60 - 100 300 - 650

Reaming 100 - 300 130 - 200 75 - 180 60 - 100 35 - 65 20 - 55 40 - 60 150 - 350

65 - 100 15 - 50

35 - 85 15 - 30

100 - 145 70 - 120 55 - 90 40 - 60 30 - 60

60 - 100 50 - 90 45 - 70 40 - 50 10 - 20

Feeds and Speeds for End Milling using High Speed Steel* tooling. *Multiply the listed speeds by a factor of 2 when using carbide tooling. Feedrate (in/tooth) End Mill Diameter (in) Material 1/4 1 Aluminum 0.003 0.009 Bronze, medium 0.003 0.007 Bronze, hard 0.002 0.005 Cast Iron, soft 0.003 0.008 Cast Iron, hard 0.002 0.005 Plastic 0.003 0.012 Steel, low C 0.001 0.004 Steel, 4140 0.0005 0.003 Steel, 4340 0.0003 0.002 Stainless Steel: Type 304 0.001 0.004 Type 17-4PH 0.0005 0.003 Inconel 0.0002 0.003 Monel-K 0.0003 0.008 Ti-6Al-4V 0.001 0.004 Zinc (die castings) 0.002 0.010 Feeds* for Drilling *High Speed Steel and carbide tooling use same values.

Cutting Speed (ft/min) Roughing 600 250 125 60 50 150 75 50 50 55 35 30 60 25 800

Finishing 800 300 150 80 70 160 90 70 70 75 50 40 80 40 1000

Drill Diameter (in) Under 1/8 1/8 to 1/4 1/4 to 1/2 1/2 to 1 Over 1

Drill Feed (in/rev) 0.001 - 0.003 0.002 - 0.005 0.004 - 0.007 0.007 - 0.017 0.015 - 0.030

Feeds* for Rough** Turning *High Speed Steel and carbide tooling use same values. **Feeds for finishing depend on required surface finish. Finer feeds generally give smoother surfaces. Material Feedrate (in/rev) Aluminum 0.007 - 0.050 Cast Iron 0.011 - 0.025 Copper Alloys 0.005 - 0.022 Nickel Alloys 0.005 - 0.018 Stainless Steel*** 0.005 - 0.022 Steel 0.010 - 0.090 Titanium 0.007 - 0.018 ***The surface of some stainless steels will workharden when cut. A positive feedrate large enough to enable the tool to cut under the effected area is required. Do not allow the tool to apply pressure to workpiece w/o cutting.