Koken 1 in Dr Socket - 12 point Made In Japan, Highest Quality, Most Dependable Flat Drive sockets to ensure a flat surface contact between the socket and the Bolt/Nut. The flat drive system reduces wear and allows to transmit a higher torque value. Cold Forged Heat Treated Chrome Molybdenum Alloy exceeding Din 3129, ISO2572-2 Standards. Product Code: 8405A090 2.13/16 in 8405A 1 in Dr Socket 12pt 2.13/16 in x 88mm