Koken has a huge range of sockets available in 6 point, 12 point, standard and deep, impact, torx, internal torx, allen key, universal, bit sockets, nut grip, spline, adaptors, etc. from 1/4" drive to 2.1/2" drive. Because of the 'cold forging' process, all Koken sockets are extremely accurate with sizing. Cold forging is a process where the steel used is softened and then forced into the socket die. Because there is no expansion and contraction of the steels molecular structure, the accuracy of the sockets measurements are exact.This is one of the few sources in the world for industrial size sockets up to 8 inches in diameter!
Koken sockets are available in two basic configurations. The first is a flat drive which is designed to maximize contact with the nut. This reduces damage to the surface. The second configuration is a surface drive or flank type drive. It is configured to maximize the power transmitted to the fastener by applying force lower on the flats. This is good for worn fasteners or fasteners that are polished where you want to minimize the contact area.
when requesting a price you can specify your preferred drivesystem.