The Dremel MM494 pipe and 2X4 blade is made for cutting pipe and thick materials such as 2X4 studs. With an extra wide cutting edge, the MM494 adds control and convenience because users can now easily cut PVC, conduit, and copper pipe without the blade slipping off of the work-piece. Cuts through a 2X4 can now be done in one pass as well. The blade's Bi-Metal construction optimizes the MM494 for metal cutting, so you'll experience no more destroyed teeth if you hit a nail while cutting.