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Milling Tools

Speeds & feeds

Enter the material, cutter and engagement — you get starting RPM, feed, removal rate and power.

Example: Aluminium, 6 mm carbide end mill, 3 flutes, 1 mm side step → feed corrected for chip thinning.

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Spindle speed and feed rate

Starting values for an end mill. Enter the engagement too — the feed is corrected for chip thinning and we work out removal rate and power. Then fine-tune by sound and chips.

Material

Starting values for typical end mills; power uses an approximate specific cutting force kc and 80 % efficiency. Always check your cutter maker's catalogue.

ISO 286 fits, ISO 2768 general tolerances and Ra roughness are now in the CAD tools.

Rather not machine it yourself? Send us a STEP file or drawing — we make the part in aluminium, brass or plastic on our DATRON neo and send you a price. Get a CNC quote →