Features: Using choice steel to make, service wrench hex key adapter is stable and not easy to break, safe and reliable, heat-resistant, -resistant, allowing you to use it with confidence for a long period. Each ratchet wrench hexagon bit adapter measures 0.4 inches long, 0.4 inches wide, 2.0 inches high, and has a weight of 0.1 pound, small and light weight for efficient and easy use anytime and anywhere without causing burden to you. Our air conditioning wrench adapter has chromium black coating and heat-treated technology, can be easily applied, saving effort and time , making it essential tool for equipment installation. Hex bit adapter is widely suitable for air condition repair, refrigeration repair and other equipment repair, you can also use it to open and close the compressor service valve, rotalock valves and shutoff valves, no matter indoors or outdoors. Specifications: Color: black Size: 0.4 inches long, 0.4 inches wide, 2.0 inches high Weight: 0.1 pound Material: steel Package Contents: 3 x Service wrench hex key adapters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.