Optimize your jobsite with this project pack from DIABLO. The DIABLO 16-Piece Hole Saw Kit features five (10 in.) bi-metal hole saw cups, 2 SnapLock PLUS mandrels, 2 pilot bits and 2 adaptor nuts (1/2 in. and 5/8 in.) for quick and easy hole saw cup changes for maximum job performance DIABLO's SPEEDemon Spade Bit range provides 1 of the fastest, most effortless hole drilling solutions on the market for fast, clean wood. The high-performance SPEED-TIP design self-feeds for faster hole making when compared to traditional spade bits. The latest addition to DIABLO's Steel Demon Carbide reciprocating blade family is the industry's first carbide teeth blade for thin metal conduit and tubing. A proprietary high performance carbide formulation extends the cutting life up to 50-times longer, making this the most efficient cutting solution in thin metal conduit and tubing applications.