The Milwaukee 33-Piece Bi-Metal General-Purpose HOLE DOZER Hole Saw & Oscillating Multi-Tool Blade Kit. HOLE DOZER Hole Saw is engineered for longer life and faster cutting performance and is the Most Durable Hole Saw. The kit comes with 13 hole saw blades in 9 sizes: 3/4 in., 7/8 in., 1-1/8 in., 1-3/8 in., 1-1/2 in., 1-3/4 in., 2 in., 2-1/8 in. and 2-1/2 in. The hole saws feature RIP GUARD teeth built with more steel behind the cutting edge for added strength. The teeth give increased productivity on the job site and better hole quality. They are also backed by a limited lifetime tooth break warranty. Each HOLE DOZER is coated with a low friction, thermoset paint that provides a faster cutting speed in wood and more holes cut per battery charge. The Milwaukee Universal Fit OPEN-LOK Oscillating Multi-Tool Blade Kit offers users an assortment of the top-selling oscillating blades. The Titanium Enhanced Bi-Metal Blades use premium high-speed steel and last up to 15X longer than standard high carbon steel blades. The 1-3/8 in. Bi-Metal Multi-Material Blade is ideal for smooth cuts in wood and nails, PVC, and drywall. The 1-1/8 in. Bi-Metal Metal Blade is ideal for smooth cuts in soft metal, wood, nails, PVC, and drywall. The oscillating wood blades feature aggressive, precision ground teeth for fast cuts in wood, drywall, and PVC.