Spring loaded semi-automatic tang break punches are extremely easy to use and require no other tooling.

 

Suitable for inserts ranging from M2 to M12, or the equivalent unified/British sizes, they deliver a controlled impact and are particularly effective on very small diameter inserts.

 

To use, simply position over fitted insert and push down telescopic handle using only hand pressure. Internal spring is loaded then automatically released, firing punch and shearing tang instantly.