1/4 3/8 3/16 & 5/16 Square Ratchet Service Wrench Set With 1 Hex Wrench HvacOOTDTY Features: & 2 Types Of Wrenches Are Available, Straight + Adapter/ Curved + Adapter, Your Choice According To Your Needs. Air conditioning wrench square hole diameter: 3/16" 1/4" 5/16" and 3/8". Quick-flip reversing lever for quick reversing. The sockets are clearly marked with hexagonal sizes. Val ve ratchet wrench for installing or servicing heating, air conditioning or refrigeration equipment and freezers, commercial and residential air conditioners. Ease of use is great for working comfortably anywhere. It works well for the installation of clamp beam, open acetylene tank, valve stem seats, and refrigeration gland nuts, saving cubes and time. Refrigeration wrench made of metal, good quality and withstands tough field use. Specification: Material: Metal Hole Diameter: 1/4", 3/8", 3/16", 5/16"Package Included: 1x Ratchet Wrench1x Allen BitNote: Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.