Selection of the Corner radius

Effect of small and large nose radius.

Small corner radius

 - ldeal for small cutting depth.

 - Reduces vibration.
 - Weak cutting edge.

Large corner radius

 - Heavy feed rates.

 - Large depths of cut.

 - Strong edge security.

 - Increased radial pressures.

Rule of thumb

 - The depth of cut should be no less then the nose radius (RE).