I have used it to cut 3/4" PEX. The extreme sharpness allows the blades to slide through the pipe like butter, but due to the small size of the jaws it wasn't easy to get them.Really square cuts I wish the jaws were a little bigger and I'd like the underside of the jaw where the pipe is a little wider so the pipe doesn't deform when you cut it.this is accurate enough for the occasional home use.