Numbers you can
actually run.
Feedrate gives you speeds and feeds for milling, drilling and turning across 18 material groups — corrected for how much of the cutter is really engaged, and clamped to what your machine can actually reach.
Mild steel · ⌀12.7 mm · 4 flute · coated
Spindle
4,775
RPM
Feed
143
IPM
Feed boosted 1.67× for chip thinning
What makes it different
- Radial chip thinning
- Below 50% radial engagement the chip comes out thinner than your programmed feed, so the tool rubs instead of cutting. Feedrate raises the feed to compensate and shows the factor it used.
- Full-slot de-rate
- Buried in a slot, chip evacuation and deflection are the limit, not the formula. Feedrate backs the numbers off instead of pretending otherwise.
- Your machines, not a generic one
- Save each machine with its real spindle, feed and power limits. Results are clamped inside them, so you never get a number your mill cannot reach.
- The shop reference
- Tap drills at any thread engagement, clearance holes, bolt circles, right triangles and sine bar stacks.
One payment
Feedrate costs $8.99 once. No subscription, nothing recurring, nothing to cancel. The app is free to download and requires that single purchase to use.
Cutting data is a conservative starting point, not gospel. Values vary by tool brand, coating, coolant and rigidity — your tool's datasheet always wins.
Get in touch
Found a number that looks wrong, or want a material or feature added? Contact us or email octacoach143@gmail.com.