Cutting Clearance Calculator
space_barCutting & Shearing

Cutting Clearance Calculator

Calculate the optimal die clearance for punching and blanking operations. Proper clearance ensures clean cuts and extends tool life.

  • check_circlePer-Side Clearance: Clearance on each side of the punch.
  • check_circleTotal Clearance: Total diameter difference between punch and die.
  • check_circleMaterial Specific: Different materials need different clearances.
  • check_circleTool Life: Correct clearance extends punch and die life.

Cutting Clearance Calculator

Units:
mm
%

school Theory & Formulas

Cutting Clearance Guidelines:

| Material | Clearance % |
|----------|-------------|
| Soft Steel | 5-7% |
| Medium Steel | 7-8% |
| Hard Steel | 8-10% |
| Stainless | 6-8% |
| Aluminum | 4-6% |

For Punching: Die = Punch + 2 × Clearance
For Blanking: Punch = Die - 2 × Clearance