Malco RRW316, Hex Key Wrench Inserts for 3/16" and 5/16" Valves
For installing or servicing heating, air conditioning or refrigeration units. 5/16" & 3/16" Hex Key Wrench Inserts (optional) 1/4" square drive shanks fit Malco RRW4 Ratchet Wrenches. Facilitates easy ratcheting action for servicing hard to access valves common in air condition and refrigeration condensing units. 1 5/8 inches long.