Recommended Milling Conditions
High SpeedSide Milling
GR.5 Hardened Steel （ 38~48HRC ）
GR.6 Hardened Steel （ 48~56HRC ）
GR.7 Hardened Steel （ 56~68HRC ）
Work Material
200
150
100
Vc m/min
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
RPM (min-1)
Feed (mm/min)
Code No.
Dc
3 4 5 6 8
21,233 15,925 12,740 10,617
1,620 1,725 1,750 1,200 1,200
15,925 11,944
1,130 1,200 1,200
10,617
424 477 510 530 530 420 420 420 420
7,963 6,370 5,308 3,981 3,185 2,654 1,991 1,593
9,555 7,963 5,972 4,778 3,981 2,986 2,389
S645TX S676AX S665TX S678AX
700 700 630 630 650 650
7,963 6,370 5,308 3,981 3,185
10 12 16 20
850 850 900 900
ap:1.5D
ap:1.5D
ap:1.5D
（ mm ）
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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