CNBTR Black High Carbon Steel Saw Blades Oscillating Multitool Precision Quick Release Set of 5 Very versatile, suitable for most of the tools,Used for household decoration, mainly for cutting wood, plastic and metal Lasting performance,great replacement for your old and damaged saw baldes Adaptation in Bosch and Fein of the vast number of high-quality machines at home and abroad Safety instructions: Razor blades permanently enclosed in a cartridge or housing with less than 2mm of blade exposed. The bladed product is not use for people under 18 years. The item is only use for industrial cutting/engraving, not hazardous article.