The golf tee grip makes this hole punch feel way more natural in my hand than the old plastic tool I was using, and it cuts through the half-inch drip line cleanly every time. I've punched about fifty holes so far and the tip still feels sharp, no cracking or bending.
Charlotte C.★★★★☆
The hole it punches is clean and exactly the right size for the 1/4-inch fittings, so they push in without tearing the tubing. It handles both 1/2-inch and 5/8-inch lines fine, though I wish the grip had a bit more texture for when my hands are wet.