This High-Speed Steel Segmented Saw Blade is a 3-3/1-Inch wide blade for continuous cutting in wood, drywall, plastic, copper, aluminum, other nonferrous metals and other soft materials. It is constructed of High-Speed Steel for reliability and strength. The GAMT522 HSS Segmented Saw Blade Universal Accessory fits almost All Oscillating Tools on the Market, most with NO Adaptor Needed and is an excellent accessory for our popular Genesis GMT15A, GMT16V and GMT25T Oscillating Tools.