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4HCEG RPM : rev./min Feed : mm/min

Carbon Steels / Alloy Steels Prehardened Steels Stainless Steels Hardened Steels
SUS
Material SCM / SNCM / S45C NAK / CENA / KP4 SKD / SKT / STAVAX

Hardness ~ 35 HRc 35 ~ 45 HRc 45 ~ 55HRc

Outside Diameter ~1100N/mm2 1100~1500N/mm2 1500~2000N/mm2
2mm
3mm RPM FEED RPM FEED RPM FEED RPM FEED
4mm
5mm 11,560 280 7,560 170 6,300 140 5,040 50
6mm 8,920 320 5,560 200 4,620 170 3,360 60
8mm 7,560 570 4,620 350 3,880 280 2,940 60
10mm 6,300 600 3,780 360 3,160 300 2,320 70
12mm 5,560 660 3,360 410 2,840 330 2,000 80
14mm 4,200 710 2,520 380 2,100 350 1,680 110
16mm 3,260 610 2,000 300 1,680 300 1,360 90
18mm 2,740 520 1,680 250 1,360 240 1,160 80
20mm 2,420 510 1,460 225 1,210 220 70
2,200 410 1,360 200 1,100 200 960 60
1820 350 1210 180 175 900 50
1,680 320 1,060 160 950 150 820 40
840 680
0.05D

Depth of Cut 1.0D
Depth of Cut

4LEMG RPM : rev./min Feed : mm/min

Material Carbon Steels Alloy Steels / Prehardened Steels Hardened Steels
S50 / SCM SKD61 / NAK SKD61
Hardness
~ 30HRc 30 ~ 45HRc 45 ~ 55HRc
Outside Diameter
1mm RPM FEED RPM FEED RPM FEED
1.5mm
2mm 8,200 85 6,100 65 4,300 30
3mm 7,100 95 5,500 75 3,500 40
4mm 6,300 100 5,040 80 3,150 45
5mm 4,410 115 3,570 100 2,200 55
6mm 3,570 140 2,840 115 1,790 60
8mm 3,050 180 2,420 140 1,580 70
10mm 2,630 215 2,100 180 1,370 90
12mm 2,000 230 1,580 180 1,050 90
16mm 1,680 230 1,370 180 90
20mm 1,370 180 1,160 160 840 70
25mm 1,160 160 125 700 60
115 890 90 560 45
Depth of Cut 840 80 680 65 420 30
Depth of Cut 650 790 310
0.05D
0.02D

2.5D 2.0D

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