This is a well made device. I have the impression that it will last for many years. He got through 14 gauge stainless steel pretty quickly. The key to success is to move very slowly. If you have a drill where you can reduce the speed to around 1000 rpm, you should do so. If using a hand drill, pull the trigger very lightly to keep the RPMs low. Also, make sure the oil or other lubricant you use is flowing.