Bulkhead Wrench

Bulkhead wrench. You can use the flat piece or the tall piece, or you can use both of them together.

Flat piece allows you to get to the bulkhead in a tight spot, tall piece can be used where you have even less space. Combine the two pieces together for ultimate maneuverability.

Available in 3/4'', 1'' and 1 1/2'' sizes.