1. 6 punches, optional replacement
2. Long hold not tired, the use of ergonomics
3. 45 steel punch black plus hard treatment, sharp and durable, low noise
4. Material: steel + pure copper + solid wood
5. Aperture: 1.5/2/2.5/3/3.5/4mm (with 6 punches, replaceable punches)
6. Total length: about 135mm
7. Working principle: using the pressure of the handle, the threaded groove at the connecting rod rotates counterclockwise, driving the punch to rotate to cut out the round hole