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4JJCR / 4JJTC RPM : rev./min Feed : mm/min

Side Cutting

Prehardened Steels / Hardened Steels Hardened Steels

Material STAVX / SKD / SKT SKD11 / SKD61 SKD / SKD11 SKD11 / SKS / SKH51

Hardness 50HRc ~ 55HRc 55HRc ~ 60HRc 60HRc ~ 65HRc 65HRc ~ 68HRc

Outside Diameter RPM FEED RPM FEED RPM FEED RPM FEED

0.4mm 40,000 580 33,000 350 25,000 240 20,000 150
0.5mm 40,000 600 33,000 365 25,000 245 20,000 140
0.6mm 40,000 650 30,000 380 25,000 250 20,000 150
0.8mm 30,000 660 25,500 400 19,000 260 16,000 155
1mm 25,500 710 20,500 430 16,000 270 12,500 175
2mm 17,500 840 14,500 520 11,000 320 230
3mm 11,500 840 520 320 9,500 230
4mm 880 9,500 540 7,500 335 6,400 240
5mm 8,800 1,000 7,200 580 5,600 370 4,750 270
6mm 8,300 950 6,400 560 5,100 350 4,450 260
8mm 6,900 900 5,300 520 4,200 330 3,700 240
10mm 5,200 840 4,000 480 3,200 310 2,800 220
12mm 4,100 840 3,200 480 2,550 300 2,200 220
3,500 2,650 2,100 1,860

0.03D

Depth of Cut 1.0D

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

Side Cutting

Prehardened Steels / Hardened Steels Hardened Steels

Material NAK / SKD STAVX / SKD / SKT SKD11 / SKD61 SKD / SKD11 SKD11 / SKS / SKH51

Hardness 40HRc ~ 50HRc 50HRc ~ 55HRc 55HRc ~ 60HRc 60HRc ~ 65HRc 65HRc ~ 68HRc

Outside Diameter RPM FEED RPM FEED RPM FEED RPM FEED RPM FEED
1mm
2mm 38,000 840 25,500 568 20,500 344 16,000 216 12,500 140
3mm 26,000 1,000 17,500 672 14,500 416 11,000 256 9,500 184
4mm 17,300 1,000 11,500 672 416 256 6,400 184
5mm 13,200 1,040 704 9,500 432 7,500 268 4,750 192
6mm 12,500 1,200 8,800 800 7,200 464 5,600 296 4,450 216
8mm 10,350 1,120 8,300 760 6,400 448 5,100 280 3,700 208
10mm 1,080 6,900 720 5,300 416 4,200 264 2,800 192
12mm 7,800 1,008 5,200 672 4,000 384 3,200 248 2,200 176
6,150 1,008 4,100 672 3,200 384 2,550 240 1,860 176
5,250 3,500 2,650 2,100
0.03D

Depth of Cut 1.0D

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