CNC Calculators
Inch-system feeds, speeds, drilling-cycle values, and a job checklist — all running in your browser.
CNC Calculators
Feeds & Speeds
— RPM & IPM for drills and endmills
Spot Drill Depth
— Spot depth for a given drill & chamfer
G81 Drill Z-Depth
— Final program Z (tip target) for drilling
G82 Dwell P-Value
— Dwell time for flat-bottom / counterbore
G83 Peck Q-Value
— Peck increment for deep-hole drilling
Machining Checklist
— Setup → run → teardown workflow