Uxcell 65mm x H8 8mm Hex Socket Magnetic Setter Spanner Driver Bits, 10-Piece Product Name : Hex Driver Bit; Material : Chrome-molybdenum steel Hex Socket Size : 8mm/ 0.3"; Hex Shank Size : 6.35mm/ 1/4" Overall Size : 10 x 65mm/ 0.4" x 2.5" (DL); Color : Gray Weight : 249g Package : 10 x Hex Driver Bits