10 Ago Uniweld DHW316 Dual Hex Wrench Adaptor 3/16 and 5/16 in, 1/4 in Square Socket
Model : DHW316. Trade specific tool for HVAC/R Technicians for opening and closing 3/16in and 5/16in hex liquid and suction base valves. Adapter has 3/16in and 5/16in hex keys included....