Our nut grip sockets are unique to Ko-ken and truly a revolutionary way of approaching this type of socket. Our fastener holds nuts and bolts in place without the use of magnets. Our system is built with a coil spring and ball bearings on opposing flats. When a nut or bolt is in the socket the ball bearings push out on the springs holding the nut/bolt in place.

Input Drive Size: 3/8″ Drive Shape: Square Type: Nut Grip Socket Rail Set Includes: 3350M Nut Grip Sockets 8, 10, 12, 13, 14 mm Rail 150mm