Two wrench configurations Straight wrench with adapter Curved wrench with adapter Choose the head that fits your task Square opening sizes and features Square openings: 3/16 in, 1/4 in, 5/16 in, and 3/8 in Quickflip reversing lever for fast reverse ratcheting action Sockets clearly marked with hex sizes for easy identification Ratcheting valve wrench purpose Designed for installing and servicing heating, air conditioning, refrigeration units and freezers Suitable for commercial and residential air conditioners Ease of use and practical applications Ergonomic design for comfortable use in various environments Effective for beam clamp installation, opening and closing acetylene tanks, stem sockets, and refrigeration packing gland nuts Helps save time and reduce knuckle strain Use scenarios HVAC installation and service: Use the straight or curved head with adapters to access tight spaces when assembling or servicing heating, cooling, and refrigeration components; the hexmarked sockets and quickreverse lever speed up work. Workshop and tank work: Ideal for beam clamp installations and acetylene tank handling, where adapters and compact wrench heads provide access in restricted areas. Refrigeration maintenance: Useful for servicing commercial and residential refrigerators and freezers, including tasks involving stem sockets and refrigeration packing gland nuts, with clear hex sizing for quick tool selection.