Live tool/tool/drill-speed-calculator

Drill Speed Calculator

Translate drill diameter and target surface speed into spindle RPM and feed rate.

EngineeringMachiningReference

Tool diameter

Target surface speed

SFM

Feed per rev

in/rev

Recommended spindle speed

1,528 RPM

Feed rate

6.1 in/min

Surface speed

100 SFM

Diameter

0.25 in