Mfg. Part No.: ETC-200 Brand: Endeavor Tool Co. Gator Grip universal socket grips any shape, 54 steel pins automatically adjust to grip hex nuts, wing nuts, square nuts, and especially broken or rusted nuts. Fits both 1/4″ to 3/4″ standard and 7mm to 19mm metric. Set includes socket, drill adapter, and 3/8″ drive ratcheting socket wrench. No. ETC-200: Measurement Type: Universal, Drive Size: 3/8 In., Pieces In Set: 3 Pcs., Finish: Chrome, Pkg Qty: 1, Package Type: Clamshell.