Perfect Protection: Model Number: 49-16-2554. This m-12 impact boot provides a snug and secure fit to protect M-12 3/8" and 1/2" impact wrenches. (2554, 2555, 2555P) Flexible and: Flexible material for easy installation and removal. Made of special grade rubber, very lightweight and adds minimal weight to the tool. Exclusive rubber resists corrosive materials commonly found in maintenance environments (such as engine, gasoline, fuel, even small stone chips) Best Choice: This protective boot for M-12 49-16-2554 will prevent damage when inevitable drops occur during routine use, and which not only provides your tool with class protection, but also gives you the best hand feeling, will be an essential tool in your automotive engineering project. Note: Do not use on or near live circuits. Using this M-12 tool boot on any other incompatible power tool may damage the tool, so please pay attention to the suitability of the cover for your tool. Only Fits M-12 Stubby Impact Wrenches (2554-20,