If you are intending to build your own irrigation lines to drip feed your plants you will need an irrigation hole punch to make the job far easier and also to fit the pipes together correctly so there are no major leaks.
This irrigation hole punch will punch out a clean hole in any large size pipe to allow you to insert a 5mm nipple. The remainder of the nipple sticking out of the pipe can connect to some drip line with a dripper fitted on the end to emit your solution into your media.