MAN4MACHINEMachinist tools · Beta

Shop calculator · v1

Speed & feed, without the spreadsheet.

Choose the material and cutter. Get a conservative starting point, then tune it for your tool, setup, coolant, and machine.

Operation
Units
ISO N6061-T6

General-purpose wrought aluminum. Use sharp, polished geometry and clear chips aggressively.

Cutter material
Machine limits Protect the program output

How it works

The familiar shop formulas, made usable.

01 / SpindleRPM = (SFM × 12) ÷ (π × diameter)

Metric and inch inputs use the same underlying relationship.

02 / Milling feedFeed = RPM × flutes × chip load

For drilling and turning, feed per revolution replaces chip load per tooth.

03 / LimitsProgram ≤ machine maximum

Machine caps are applied before the final effective cutting values are reported.

Formula references: Sandvik Coromant and Kennametal. Material presets are broad, conservative starting ranges—not tool-specific cutting data.