Function: Designed to compress valve springs with the cylinder head on. Helps to replace or inspect valve springs more quickly and easily.
Material: Made of aluminum, with a sturdy structure, impact resistance, resistance to deformation, and resistance to rust or corrosion. Rubber grip handle for anti-slip and labor-saving.
360 Degrees Rotation Design: Handle swivels 360 degrees to compress and lock spring down to desired height and remove handle while removing or installing keepers. Press down to compress coil spring, then remove valve keepers.
Advantage: Based on the lever principle, the handle provides enough force to compress the spring and save labor.
Application: Fits for all 3/8'' and 7/16'' rocker studs.Specially designed for compressing valve springs with the cylinder head on block.