1/4-inch Hex Shank 3/8-inch Impact Power Drill Socket Adapter 10pcs Product Name: Socket Adapter; Net Weight: 218g Package Content: 10 x Socket Adapter; Material: Chrome Vanadium Steel Total Size: 12 x 51mm/0.47" x 2" (D*L); Socket Size: 3/8" Shank Size: 6.3mm/ 1/4"; Bit Type: Hex/Hexagon Color: Gray