【Long service life】EZARC multi-tool saw blades with carbide teeth easily handle the toughest metal applications with 30 times longer service life compared to bi-metal blades. 【Strong stability】Enhanced laser-welded carbide technology with a slim body makes the saw blades extremely strong and durable. 【Super durability】Super durability for hardened materials. The multi-tool saw blades can be used to cut stainless steel, hardened screws, nails, GRP, and drywall, etc. 【High efficiency】EZARC oscillating multi-tool saw blades are easy to use and install, which can greatly improve your cutting efficiency. 【Universal compatibility】Our quick-change saw blades with a universal interface system are compatible with most brands of oscillating tools on the market such as Fein, Ryobi, Milwaukee, Rockwell, Black & Decker, Porter Cable, Craftsman, and more. NOTE: Not recommended for Starlock interface systems.