TOOGOO(R) Magnetic 3/8" Hex Socket 1/4" Shank Spanner Nut Setter Driver Bit 3 Pcs Product Name : Magnetic Hex Driver Bit;Hex Socket Size : 10mm/ 3/8" Hex Shank Size : 6.3mm/ 1/4";Overall Size : 14 x 65mm/ 0.55" x 2.6" (D*L) Color : As picture shown;Material : Metal Weight : 111g