Universal Valve Spring Compressor
This valve spring compressor tool is designed to compress valve springs on overhead valve engines.
It includes two valve spring adapters, which fit valve spring retainers up to 1 inch (25mm) and 1-3/16 inches (30mm).
It has a jaw opening of 1-3/8 inches to 5-5/8 inches (35mm to 142mm) and a throat clearance of 5-7/8 inches (150mm).