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Q6.

Revolving speed

Reference table of drills, threads, and cutting revolving speed

 
Materials Plastic Bronze \  Brass Alloy copper Aluminm Cast Iron Iron Stainless steel
Cutting conditions Value ± 5 Value ± 7 Value ± 2 Value ± 10 Value ± 5 Value ± 5 Value ± 2
D.I.A (mm) \ R.P.M \
Cutting tools
34
17
60
30
28
14
50
25
30
15
25
12
8
4
Ø2 5415 2705 9555 4780 4460 2230 7960 3980 4780 2390 3980 1910 1275 635
Ø3 3610 1805 6370 3185 2970 1485 5310 2655 3185 1590 2650 1275 850 425
Ø4 2705 1355 4780 2390 2230 1115 3980 1990 2390 1195 1990 955 640 320
Ø5 2165 1085 3820 1910 1785 890 3185 1590 1910 955 1590 765 510 255
Ø6 1805 900 3185 1590 1485 745 2655 1330 1590 795 1330 640 425 210
Ø7 1545 775 2730 1365 1275 635 2275 1140 1365 680 1140 545 365 180
Ø8 1355 680 2390 1195 1115 555 1990 995 1195 600 995 480 320 160
Ø9 1205 600 2125 1060 990 495 1770 885 1060 530 885 425 285 140
Ø10 1085 540 1910 955 890 445 1590 800 955 480 800 380 255 125
Ø11 985 490 1740 870 810 405 1450 725 870 435 725 350 230 115
Ø12 900 450 1590 795 745 370 1330 665 795 400 665 320 210 105
Ø13 835 420 1470 735 685 340 1225 610 735 365 610 295 195 100
Ø14 775 385 1365 680 635 320 1135 570 680 340 570 270 180 90
Ø15 720 360 1275 640 300 300 1060 530 640 320 530 255 170 85
Ø16 680 340 1195 600 560 280 995 500 600 300 500 240 160 80
Ø17 640 320 1125 560 525 260 935 470 560 280 470 225 150 75
Ø18 600 300 1060 530 495 250 885 440 530 265 440 210 140 70
Ø19 570 285 1005 500 470 235 835 420 500 250 420 200 135 67
Ø20 540 270 955 480 445 225 795 400 480 240 400 190 130 65
Ø25 430 220 765 380 355 180 640 320 380 190 320 155 100 50
Ø30 360 180 635 320 300 150 530 265 320 160 265 130 85 45
Ø40 270 135 480 240 225 110 400 200 240 120 200 95 65 30
Ø50 220 110 380 190 175 90 320 160 190 95 160 75 50 25