Use the Hole Punch Tool to make installing your drip system quick, easy, and hassle-free. The hole puncher features a solid metal tip to pierce 1/2 in., 5/8 in., and 0.710 in. supply tubing for insertion of 1/4 in. fittings and drippers. Saves time when you build, expand, or repair your drip system - simply position tubing in the adjustable holder (which has a sliding shelf to accommodate larger-sized tubing) and press the handgrip down to punch the hole. This tool is a sure-fire solution for reliable, repetitive punching. The Hole Punch Tool is made of polypropylene (PP) treated with UV inhibitors.