Details*Features* - **TOUGH HIGH-CARBON STEEL MATERIALS* - Made from premium high-carbon steel materials and adopting special manufacture technology,our oscillating saw blade is high-hardness(up to 48HRC),tougher and thicker than most-made of alloy steel and high carbon steel,high-abrasion resistance and very durable.** MARKER DESIGN FOR PRECISE CUTTING* - Coming with two kinds of length measurement markers on each edge side(one side is inch and the other is centimeter) to ensure an accurate and quick cut.** MULTI-PURPOSE* - Can be used to cut wood,soft metal,plastic,drywall,nail and open hole. And can be used for household and workshop for various needs.** STRONG COMPATIBILITY* - Designed to compatible with most oscillating tools in the market,such as for Fein Multimaster,Ryobi,Milwaukee,Hitachi,Black & Decker,Chicago,Craftsman,Dewalt and More.(Note - Do not fit for Dremel MM40,MM45,Dremel Multi Max 6300 and Bosch MX30)** 20PCS TO MEET YOUR NEEDS* - Including 20pcs multi-functional os