The Solenoid Multi-Purpose Tool performs three distinct functions:
It's a magnetic tool that operates the valve without having to energize the coil (up to 300 psi ?P)
It's a spanner wrench for a 3/8" ratchet drive that enables easier valve disassembly while protecting the enclosing tube (prongs align with collar recesses)
It's an adjustment tool that quickly opens a valve with a manual stem.