This assembly is not designed to hold the seat on the tool when attempting to reinstall it into the assembly. The tool is used to loosen and tighten the seats. It makes contact on all four notches, uses a ratchet to put them in and out, and will help lay the seat flat to prevent cross-threading from occurring.
Uses: Check Seat and Relief Valve (RV) Seat removal.
Assembly includes: Check Seat tools (3 each), Relief Valve Seat tools (3 each) in a plastic case.