Williams 30945 6-Piece 1/4-Inch Drive Metric Mid Hex Bit Socket Set 6-Piece socket set plus clips and clip rail. 1/4-Inch drive Mid hex bit and metric sized. Socket sizes are 3mm, 4mm, 5mm, 6mm, 7mm and 8mm High polished chrome finish cleans easily All six sockets are 13/16-Inch length, outside diameter of 15/32-Inch, overall length of 1-13/16-Inch, bit length of 5/8-Inch.