This. I thought that they were an expensive gimmic…NOPE. I have used mine a lot over the last 6 or so years. Laid about 2 miles of joint trench and that thing was awesome. Expensive but worth every penny.I have the m12 PVC cutter and it works great for PVC and works on pex but it's a little big. For pex I have a rothenberger cutter that works good.