Diameter of the hole or feature being machined
Diameter of the cutting tool
Standard feedrate for full engagement
Diameter Difference:
Radial Engagement Ratio:
Reduced Feedrate:
Feedrate Reduction:
How to Use Feature Dia Minus Cutter Dia Feedrate Reduction Calculator
Enter feature diameter, cutter diameter, and nominal feedrate values. Click calculate to compute the adjusted feedrate and engagement ratio. The tool displays reduced feedrate based on radial engagement automatically.