Made by Sealed Unit Parts Company (SUPCO)
Part# RWA10
This is a must if your working on residential split a/c systems for opening the service valves.
Heat-treated hex works for 3/16" and 5/16" hex valves.
Black Oxide plated.
Use this with SUPCO Wrench# RW516 or RW916 Service wrench's.
For accessing liquid and suction based valves on residential and commercial units up to 7.5 tons.