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Endmill Spec Table
Endmill KS Specifications — 12 sizes
Endmill
12 sizes| Nominal | Flutes | Material | Feed fz | DOC ap | Width ae |
|---|---|---|---|---|---|
| Ø3 2 | 2 | S45C | 0.008~0.015 | d×1.0 | d×0.3 |
| Ø6 2 | 2 | S45C | 0.020~0.035 | d×1.0 | d×0.5 |
| Ø6 4 | 4 | S45C | 0.025~0.045 | d×0.3 | d×0.5 |
| Ø10 2 | 2 | S45C | 0.040~0.060 | d×1.0 | d×0.5 |
| Ø10 4 | 4 | S45C | 0.050~0.080 | d×0.5 | d×0.5 |
| Ø10 4 SUS | 4 | SUS304 | 0.030~0.050 | d×0.3 | d×0.3 |
| Ø10 4 AL | 4 | A5052 | 0.080~0.150 | d×1.0 | d×0.5 |
| Ø12 4 | 4 | S45C | 0.060~0.100 | d×0.5 | d×0.5 |
| Ø16 4 | 4 | S45C | 0.080~0.120 | d×0.5 | d×0.5 |
| Ø20 4 | 4 | S45C | 0.100~0.150 | d×0.5 | d×0.5 |
| Ø6 2 | 2 | SKD11 | 0.010~0.025 | d×0.1 | d×0.2 |
| Ø6 2 HT | 2 | SKD11 HT | 0.005~0.015 | d×0.05 | d×0.1 |
Recommended endmill feed per tooth (fz, mm/tooth), depth of cut (ap), and width of cut (ae) ratios. Values differ by flute count (2, 4, ball), diameter (Ø3–Ø20), and workpiece material (S45C, SUS304, A5052, SKD11). Feed rate is F = fz·z·n, where z is the flute count and n is spindle RPM. Generic machining uses ap = d×0.5 and ae = d×0.5; stainless demands low feed and shallow cuts; aluminum allows high feed. Hardened SKD11 dies require less than half the fz and a high-speed / shallow-cut finishing strategy.