This set includes two extra deep, 6-point sockets, one 10mm and one 12mm, both with a 3/8" drive. They are ideal for recessed fixings with extra-long bolts like bumpers, door fixings, and light fittings. These sockets are particularly useful for parking brake cable adjustment on BMW, FORD, and Vauxhall vehicles. They can also be used for diesel glow plugs with 10mm and 12mm hex (6-point) fittings. Socket sizes are 10mm and 12mm, with a length of 120mm and a 3/8" drive.