This 19063 valve spring compressor is designed for use with Briggs and Stratton small engines and is compatible with replacement part 750-174. It is used for compressing valve springs during engine repair and maintenance. The tool helps with valve spring removal and installation when servicing small engines. A manual screw mechanism allows controlled compression of the spring during engine work. Metal construction supports regular use in garages and small engine repair shops. It can be used on lawn mowers, generators, and other small engine equipment. This product includes 1 valve spring compressor tool. No additional accessories are included.