Hole Pro X-230+ Kit: 1-7/8" to 9-1/4" and all fractional sizes between. Infinitely Adjustable Cutter with Twin Tungsten Carbide Blades needs ¼ drill power of a hole saw to quickly cut Plywood Sheetrock Plaster Fiberglass OSB Plastic MDF Hardie Board
One kit replaces of dozens of hole saws for faster, safer, easier cutting of exactly the hole size needed. Infinite adjustment 1-7/8" to 9-1/4" for all recessed light cans and most ceiling speakers. Kit includes pro grade adjustable hole cutter, ball bearing mounted ABS shield with soft silicon rubber gasket to trap the dust and shavings, user replaceable sets of both High Speed Steel and Tungsten Carbide blades, hex wrenches, and sturdy carry case. Shield keeps cutter straight and cutter has adjustment knob to limit depth of the cut - perfect for cutting holes in walls or ceilings to avoid accidental cutting of wires or pipes. Available vacuum adapter for connecting shop vac where there is asbestos or lead paint. All parts precision machined, chrome measure bar marked in inches and millimeters. ABS plastic shield is made from material used in hockey helmets - lightweight, strong, and never discolors. Perfect for installing recessed lights, skylights, ceiling speakers, fans, ducts, vents, or providing access holes for repairs.Kit includes user replaceable High Speed Steel blades for wood, plastics, acoustic tile, tongue and groove, laminates, rubber, and Tungsten Carbide blades for drywall, plaster, backer and Hardi board, fiberglass, chipboard, plywood, MDF. Twin blades for faster cutting and perfect balance. No need for balance bars which can break off inside other cutters. Needs  the power of a hole saw so smaller and lighter cordless drills can be used and cut more holes per battery charge. Cut holes in plywood up to 9-1/4" in diameter with 18 volt cordless drill. Cut holes in ceilings in less time than it takes to trace the circle and begin cutting with other tools. Like all Hole Pro Power Series kits the safety shield can be used with the Hole Pro XL-Arbor kit to enable the use of specialty hole cutters such as tungsten grit cutters when cutting tile or stone and have the same dust control and depth control as  the adjustable hole cutters.