Recommended Milling Conditions
Side Milling
GR.2 Low-alloyed Steel （ ~24HRC ）
GR.3 Hi-alloyed Steel （ ~30HRC ）
GR.4 Hardened Steel （ 30~38HRC ）
GR.5 Hardened Steel （ 38~48HRC ）
GR.6 Hardened Steel （ 48 ～ 56HRC ）
GR.9 Cast Iron
GR.1 Carbon Steel
Work Material
80
80
70
55
50
30
80
Vc m/min
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
120,000 240 20,000 240 15,000 215 15,000 215 10,000 85
7,100 5,100 3,900 3,000 2,700 2,200 1,900 1,500 1,100
40 50 60 60 60 70 75 70 65 65 60
20,000 240 13,500 245 13,000 300 10,000 320
1.513,500 245 13,500 245 12,000 215 12,000 215 213,000 300 13,000 300 11,000 280 11,000 280
8,000 7,000 6,000 5,300 4,200 3,500 2,900 2,200 1,700 1,400 1,650 1,400 1,250 1,100
90
110 120 125 130 140 145 145 145 140 550 480 450 420
2.510,000 320 10,000 320
9,000 7,200 5,500 4,350 3,700 2,700 2,200 1,800 2,650 2,400 2,250 1,950
300 350 360 420 425 425 420 420 575 610 620 630
9,000 7,200 5,500 4,350 3,700 2,700 2,200 1,800 1,650 1,400 1,250 1,100
300 350 360 420 425 425 420 420 550 480 450 420
3 8,800 4 6,600 5 5,300 6 4,500 8 3,300 10 2,600 12 2,200 14 2,650 16 2,400 18 2,250 20 1,950
500 530 600 610 590 580 580 575 610 620 630
8,800 6,600 5,300 4,500 3,300 2,600 2,200 2,650 2,400 2,250 1,950
500 530 600 610 590 580 580 575 610 620 630
8,800 6,600 5,300 4,500 3,300 2,600 2,200
500 530 600 610 590 580 580 125 120 105
B265TX B266TX B267TX B268TX
950 800
1,050
265 230 220 210
950 800 720 640
900 810 720
90
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
ap:1.5D
（ mm ） B265TX-10
ae:<3 0.05D ≥3 0.1D
ae:<3 0.05D ≥3 0.1D
ae:<3 0.05D ≥3 0.1D
ae:<3 0.05D ≥3 0.1D
ae:3 0.05D ≥3 0.1D
ae:<3 0.05D ≥3 0.1D
ae:0.02D
Side Milling
GR.5 Hardened Steel （ 38~48HRC ）
GR.6 Hardened Steel （ 48 ～ 56HRC ）
GR.7 Hardened Steel （ 56 ～ 68HRC ）
Work Material
150
100
50
Vc m/min
RPM (min-1) 15,800 12,000
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
3 4 5 6 8
1,200 1,300 1,300 1,200 1,100 1,100 1,065 1,000
10,500
820 800 850 820 750 745 740 730 700
3,800 2,650 2,250 2,200 1,650 1,300 1,100
120 135 140 175 185 165 145 170 170
8,000 6,300 5,300 4,000 3,200 2,700 2,000 1,600
9,500 8,000 6,000 4,800 4,000 3,000 2,400
B276AX B278TX B275TX S648TX
10 12 16 20
840 670
955
ap:1.5D
ap:1.5D
ap:1.5D
（ mm ） B265TX-10
ae:0.01D
ae:0.01D
ae:0.01D
1. Please work with good rigidity / high precision facilities and collet chuck. 2. Please choose proper cutting fluid.
3. The cutting data is reference value only. Please adjust it according to your real working conditions. 4. If RPM is lower the reference value, the Feed rate (fz) and RPM should be reduced by the same proportion. 5. If vibration occurs during cutting, please reduce cutting parameter.
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