Bosch HSM225 2-1/4-Inch-57mm Sheet Metal Hole Saw
Easy Quick Change and Simple Plug Removal.Now you can work faster - and smarter - using our patented Quick Change Universal Hole Saw System. Its revolutionary design and our universal mandrel works with any brand of tool or hole saw to let you change saws in seconds. The expanded family of Bosch hole saws now includes new carbide multi-material and sheet metal saws.