Features:
1) Easily and quickly remove valve spring from an assembled engine for checking or replacing
2) 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. Release slowly
3) Crafted from heavy-duty steel for professional level reliability and durability, a zinc plating for added corrosion protection, providing a long-term service. Rubber grip handle for anti-slip and labor-saving

Fitment:
For all 3/8" & 7/16" Rocker Studs. Specially designed for compressing valve springs with the cylinder head on block

Use Instructions:
1. Thread the tool right onto the stud.
2. Get your fork to line up with your spring and install the handle on.
3. Then press it down onto the compress coil spring, and open the locking positionso you can get in, and get valve keepers out.
4. Slowly release it out, and remove the spring.

Package included:
1x 66784 Stud Mount Valve Spring Compressor