Condition: Brand _x000D_ Item Type: Socket Adapter_x000D_ _x000D_ Material: 45# Steel_x000D_ Accessory Type: Adapter_x000D_ _x000D_ Model: Common conversion head_x000D_ Standard: Metric_x000D_ Wrench Shape: Single head wrench_x000D_ Hex Hole: Approx. 1/4in (6.3mm)_x000D_ _x000D_ Square Hole: Approx. 1/2in (12.5mm)_x000D_ _x000D_ Adapter Length: Approx. 50mm/2in, 38mm/1.5in 1Quickly change socket, with 1/2?inch female socket on one end and a 1/4?inch hex female socket on the other end. 2Easy to use, through this chuck adapter, any pneumatic or electric impact wrench can be converted into a drill bit or a ratchet wrench into a driver, quick release converter for impact wrench. 3With pattern and comfortable handle, wear?resistant and non?slip, increase friction and easy to tighten, reduce hand sweat. 4Very convenient and practical, durable, can be used for a long time, no need to worry about the quality. 51/2 1/4 inch wrench hex shank chuck conversion kit, easy to use and reliable.1 x 50mm Adapter1 x 38mm Adapter