Tool Nose Radius Calculator

Calculate the tool nose radius for machining operations based on cutter diameter and cutting edge angle

Input Parameters

Calculation Results

Tool Nose Radius (R) Calculation

R = (D/2) × tan(θ/2)

Where:
R = Tool Nose Radius
D = Cutter Diameter
θ = Cutting Edge Angle

Tool Nose Radius Calculator Usage Guide

Learn how to use the Tool Nose Radius Calculator and its working principles

How to Use the Calculator

  1. Enter the Cutter Diameter in millimeters (mm). This is the diameter of your cutting tool.
  2. Enter the Cutting Edge Angle in degrees. This is the angle between the two cutting edges of the tool.
  3. Click the Calculate button to compute the tool nose radius.
  4. The result will be displayed in millimeters (mm).

Working Principle

The tool nose radius is an important parameter in machining that affects the tool's cutting performance and surface finish. The formula used in this calculator is:

R = (D/2) × tan(θ/2)

Where:

  • R is the tool nose radius
  • D is the cutter diameter
  • θ is the cutting edge angle

Applications

This calculator is useful for:

  • Designing cutting tools
  • Optimizing machining parameters
  • Improving surface finish quality
  • Preventing tool wear and breakage

Example

If you have a cutter with a diameter of 10 mm and a cutting edge angle of 30 degrees, the tool nose radius would be:

R = (10/2) × tan(30°/2) = 5 × tan(15°) ≈ 1.32 mm