* The pipe hole puncher adopts high quality alloy material as its drilling head, which can effectively help you to open a hole on the pipe for you insert a connector or nozzle. Irrigation pipe puncher can be used to perforate polyethylene pipes for installation of drippers and micro nozzles; suitable for the drip tape that with a out diameter of 16mm. 4-In-1 punching and fitting insert: It is suitable for both drip tubing punch and 1/4" fitting insertion use. The pipe hole puncher is compact and lightweight, convenient to carry out, not occupying much storage space.