Features: Brand new and high quality Quick release and safety lock design: 1/2-inch square groove to 1/4-inch hexagonal groove adapter. Convert any pneumatic or power impact wrench into a drill bit or ratchet wrench, and use this single piece chuck converter to convert it into a driver. The quick release mechanism allows for easy and one handed exchange between drill bits during operation. The adapter securely secures any 1/4 "hex shank drill bit (including inserting the drill bit). Made of high-quality materials, it has the highest strength and durability. Specifications: Material: Metal/Plastic Package Includes: 1 x 1/2 Inch Square Female to 1/4 Inch Hex Female Socket Adapter note: 1.No retail package. 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!