These are very good quality and so far they've been holding up. I'm an electrician and I've been using these to cut copper and aluminum conductors for 200-400 amp electrical services and they are actually better in the hand than some of the $500 Klein cutters we have. I've taken to using them for cutting PVC conduit as well as nonmetallic raceways and Tech cable. I'd highly recommend getting these cutters. They just seem to work very well.