These bi-metal multitool blades universal are PROFESSIONAL for cutting nail, metal, hardwood etc. They can meet a variety of needs, which could be used for workshop ,household or other places. These oscillating tool blades can improve users efficiency by achieving extreme cutting rates. These oscillating saw blades are made of premium materials: Blade tooth-- High Speed Steel M42 Blade body-- High Carbon Steel Compatible System-- Stainless Steel Universal quick release saw blades can be used on numerous oscillating tools. Compatible with following oscillating tools: Bosch Multi-X, Bosch (except MX30) , Craftsman Nextec Multi Tool, Craftsman Nextec 17438, Craftsman Nextec 61199, Craftsman Nextec 5910, Craftsman 2702 2.0 Amp, Chicago 67256, Chicago 67537, Chicago 67538, Chicago 67707, Chicago 68303, Cougar, DeWalt , Dremel Multi-Max (will not fit MM40 & MM45 models), Driving Force, EINHELL, Falke Tool Mate, Fein Multimaster Tools, Fein Multimaster AFMM 14, Fein Multimaster FMM 250 Q,Fein MultiMaster FMM 250 Q-MS, Fein MultiMaster MOX 6-25 Pneumatic, Ferm Zwolle Holland, Genesis Multi-Purpose, HARDIN AZ318-2 250W, Haussmann 5-in-1 Multi-Purpose Tool, Ideenshop, IIT, King Canada, LongActive, Mastercraft, Master Mechanic, Matrix, MEEC Tools, Millarco prof, Milwaukee, Ozito, Power Craft, Power Duro, Pro-Line, Jobmax, Rockwell Sonicrafter Hyperlock. *NOTICE: Do not fit Fein Starlock，Bosch MX30 Do not fit Bosch Quick Release tools Adapter required for Fein Supercut,Dremel MM40 & MM45