This is the ideal tool for sharpening hole punches

• Use the outside of the cone to sharpen the inside edge of your hole punches.
• Use the inside of the cone to sharpen the outside of your hole punches.

How to use:

• Place your hole punch in the outside or inside of the cone, depening on the edge you want to sharpen.
• Gently twist the punch until you start to notice any burrs and bent edges get worn away. 

Suitable for most punch sizes.