For maximum performance, follow these punching guidelines.

A. Before punching, ensure that your punch stem and coupling nut are properly tightened and holding the punch securely.

B. Use keyways if available on shaped tools for proper alignment.

Alignment Tools >

C. Tighten the die in the die pocket with the set screw.

D. Be sure the stripper is installed and properly positioned before punching.

E. Lubricate when possible. We recommend our Punch Life Lubricant.

F. Clearance

  1. Clearance is the amount of extra space required in the hole of the die to allow the punch to pass through to punch a hole in the material. 
  2. Clearance is determined by the type and thickness of the material being punched. Be sure that the punch size is larger or equal to the thickness of material you are punching.

Die Clearance Calculator >

G. Be sure that you have enough tonnage for your application

Tonnage Calculator >

Secure punch

Ensure that your punch stem and coupling nut are properly tightened and holding the punch securely.

Keyway

Keyways are recommended for positive location of shaped punches. Failure to use keyways can result in punch damage due to misalignment.

Locating Spot

Locating spots are recommended for positive alignment of shaped dies. They are also used for securing the die in the die holder to prevent the die from turning.

Stripper Placement

Check that the stripper is properly positioned to prevent tilting of the work piece when the punch is retracted.