Antelco Pocket Punch
Antelco Pocket Punch is best used for main supply hoses (LDPE tubing) up to 17 mm in diameter.The Antelco Pocket Punch makes it effortless to punch 0.12" holes in tubing, and install and remove 1/4' emitters and fittings. The Antelco Pocket Punch is suitable for all micro-irrigation applications.
https://www.youtube.com/watch?v=S1wgUUxmL24
Technical Information can be found here.