Specifications:
Material:  steel
Spacing: 4mm
Teeth: 2 and 4 teeth available.

Features:
Especially design: to keep it sharp, the teeth are slightly staggered when closed.
advantage is  silent when punching ,it is suitable for the working silently,There are total 2 and 4 tooth hole punches head . 2 tooth and 4 tooth head can be exchanged.