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Cutting speed, spindle rpm and feed rate

Spindle speed from cutting speed and diameter, plus table feed.

m/min
mm
mm

Calculating…

How it's calculated

n = 1000 × Vc ÷ (π × D) Feed = fz × z × n

Rough starting cutting speeds for HSS tools are about 25–30 m/min on mild steel, 10–15 on stainless and 100+ on aluminium. Carbide runs roughly 3–5 times faster. Always start from the tool maker's data.