Features and Benefits:�3-piece self-feed bit plumbers' set created for end users who demand a clean, easy and cost-effective solution to hole cutting�Heat treated alloy - maximum durability and wear resistance�Inside cutting plane - produces clean smooth holes�Replaceable feed screw - effortlessly pulls bit through material�Resharpenable - longer bit life-less time and money buying a new bitThis 3-piece Selfeed bit plumbers' set comes complete with the most popular sizes of Selfeed bits for installing common sizes of pipe. The inside cutting plane shaves the hole radius for a clean, smooth hole. Made from heat treated alloy, these bits are designed for maximum durability and wear resistance. The resharpenable cutting edge can be sharpened with a standard file. The replaceable feed screw effortlessly pulls the bit through the material and is reusable promoting longer life.