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Speed & Feed Recommendations
7M, 7MB HARDNESS CUT SPEED 3 FEED (mm/flute)
Metric BRINELL Type m/min 6 10 12 20 25
CARBON STEEL 175 Finish 250 0.0166 0.043 0.093 0.110 0.147 0.160
1018, 1040, 1080, 1090, 10L50, > 175
275
1140, 1212, 12L15, 1525, 1536 Finish 220 0.0166 0.043 0.093 0.110 0.147 0.160
ALLOY STEEL 275 Finish 185 0.0122 0.034 0.069 0.082 0.109 0.120
4140, 4150, 4320, 5120, 5150, > 275
375
8630, 86L20, 50100 Finish 125 0.0122 0.034 0.069 0.082 0.109 0.120
TOOL STEEL 250 Finish 170 0.0086 0.024 0.048 0.058 0.077 0.085
A2, D2, H13, L2, M2,
P20, S7, T15, W2 > 250 Finish 105 0.0070 0.019 0.040 0.048 0.064 0.070
375
CAST IRON 220 Finish 185 0.0132 0.036 0.075 0.089 0.117 0.130
Gray, Malleable, Ductile
> 220 Finish 135 0.0132 0.036 0.075 0.089 0.117 0.130
260
STAINLESS (free machining) 275 Finish 130 0.0086 0.024 0.048 0.058 0.077 0.085
303, 416, 420F, 430F, 440F
STAINLESS (difficult) 275 Finish 90 0.0082 0.022 0.045 0.048 0.072 0.078
304, 304L, 316, 316L
STAINLESS (PH)
17-4PH, 15-5PH, Custom 450, 16- 325 Finish 80 0.0070 0.019 0.040 0.048 0.064 0.070
6PH, PH13-8Mo
TITANIUM 350 Finish 90 0.0091 0.024 0.051 0.060 0.080 0.088
Ti5Al-5V-5Mo,
Ti6Al4V, Ti-7Al4Mo
HIGH TEMPERATURE ALLOY 300 Finish 25 0.0072 0.019 0.037 0.046 0.061 0.085
Inconel, Rene, Waspalloy
CUT TYPE rpm = (1000 x m/min) / (3.14 x D1)
FINISH mm/min = (mm/flute) x 4 x rpm
• maximum recommended depths shown
ap = L2 • adjust feed as required for optimum results
ae = 0.02 x D1 • reduce speed and feed for materials harder than listed
• refer to the SGS Tool Wizard for more complete technical information
(available at )
• ramping not recommended
32 END MILLS
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