Cuts wood, Drywall, and other soft materials. Cuts through aluminium, copper, and nonferrous metals. 20 teeth per inch. Genesis universal quick-fit oscillating tool accessories fit most standard and tool-free oscillating tools. High-speed steel construction for reliability and strength. Universal accessory blade is designed to fit almost all oscillating tools with no adaptor required. HSS segmented saw blade primarily used for cutting with your oscillating tool.