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2CCBN / 2SCCBN / 4SCCBN RPM : rev./min Feed : mm/min

Material Prehardened Steels / Hardened Steels Hardened Steels Hardened Steels
Hardness NAK / SKD61 STAVX / SKD61 SKD11 / YXR7 / SKH51

30HRc ~ 45HRc 45HRc ~ 55HRc 55HRc ~ 68HRc

Outside Effective Length RPM FEED Ap Ae RPM FEED Ap Ae RPM FEED Ap Ae
Diameter Length of cut
0.4mm 50,000 890 Axial Depth Radial Depth 50,000 520 Axial Depth Radial Depth 50,000 450 Axial Depth Radial Depth
0.5mm 0.3 50,000 730 50,000 500 50,000 430
0.8mm 1 50,000 390 0.010 0.010 50,000 250 0.005 0.006 50,000 220 0.005 0.005
2 50,000 990 0.010 0.010 50,000 850 0.005 0.005 50,000 770 0.005 0.005
1mm 0.4 50,000 900 0.005 0.005 50,000 590 0.003 0.003 50,000 550 0.002 0.003
1 50,000 630 0.010 0.020 50,000 560 0.005 0.010 50,000 530 0.005 0.010
1.5mm 3 50,000 1,610 0.010 0.015 50,000 1,320 0.005 0.010 50,000 1,140 0.005 0.010
0.6 50,000 1,520 0.010 0.015 50,000 1,230 0.005 0.010 50,000 1,120 0.005 0.010
2mm 2 40,000 910 0.020 0.020 40,000 740 0.015 0.015 40,000 650 0.010 0.010
2.5mm 4 30,000 460 0.020 0.020 30,000 410 0.010 0.010 30,000 290 0.010 0.010
3mm 6 50,000 1,820 0.015 0.020 50,000 1,380 0.010 0.010 50,000 1,290 0.010 0.010
4mm 0.7 40,000 1,470 0.015 0.050 40,000 1,010 0.010 0.010 40,000 910 0.005 0.005
6mm 2 30,000 1,080 0.020 0.030 30,000 660 0.020 0.020 30,000 630 0.010 0.020
4 24,000 680 0.015 0.200 24,000 460 0.015 0.015 24,000 360 0.010 0.010
8 40,000 1,790 0.015 0.015 40,000 1,150 0.010 0.015 40,000 1,190 0.010 0.010
0.8 30,000 1,470 0.010 0.010 30,000 1,160 0.005 0.010 30,000 930 0.005 0.005
2 30,000 1,190 0.030 0.040 30,000 950 0.020 0.030 30,000 810 0.020 0.020
4 16,000 550 0.030 0.030 16,000 430 0.020 0.030 16,000 370 0.020 0.020
8 40,000 1,610 0.030 0.030 40,000 1,340 0.015 0.020 40,000 1,150 0.010 0.015
2 30,000 1,400 0.015 0.015 30,000 1,120 0.010 0.015 30,000 960 0.010 0.010
4 30,000 1,190 0.040 0.040 30,000 950 0.030 0.030 30,000 810 0.020 0.030
8 40,000 2,317 0.030 0.030 40,000 1,850 0.025 0.025 40,000 1,580 0.020 0.020
1.2 40,000 1,620 0.030 0.030 40,000 1,300 0.020 0.030 40,000 1,210 0.010 0.010
4 24,000 850 0.050 0.050 24,000 680 0.040 0.040 24,000 280 0.030 0.040
10 40,000 1,470 0.030 0.040 40,000 1,180 0.030 0.030 40,000 1,010 0.020 0.030
6 21,000 1,190 0.020 0.030 21,000 950 0.010 0.030 21,000 810 0.010 0.020
10 16,000 770 0.030 0.030 16,000 620 0.020 0.030 16,000 530 0.020 0.030
16 40,000 1,510 0.020 0.030 40,000 1,180 0.020 0.020 40,000 1,100 0.010 0.020
6 21,000 1,140 0.020 0.030 21,000 900 0.010 0.020 21,000 780 0.010 0.010
10 16,000 740 0.030 0.040 21,000 590 0.030 0.030 16,000 500 0.020 0.030
16 0.020 0.030 0.020 0.020 0.010 0.020
16,000~ 740~ 0.010 0.020 13,000~ 590~ 0.010 0.020 11,000~ 390~ 0.010 0.010
50,000 6000 50,000 4,000 50,000 3,000
0.050 0.060 0.050 0.060 0.050 0.060

Depth of Cut Ap Axial Depth
Ae Radial Depth

For 4Flute, increase 20% Feed rate & decrease 5% depth of cut.

207 JJ TOOLS