KOKN-RS2350X/1140MM Semi Deep Nut Grip Includes – 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14Nut Grip, 3/8” drive, Standard Length, Chrome Hand Socket Set. NUT GRIP® is Ko-ken’s special design for non-magnetic nuts/bolts to be held firmly in a 6-point socket. The design consists of two balls held in place by a spring steel ring. 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.Our nut grip sockets can completely change a mechanics efficiency. If you lose a nut or bolt inside and engine a lot of time you must take the entire engine apart to find the bolt. With nut grip sockets that dilemma is completely eradicated. Drive Input Size:1/4″Drive Shape:SquareType:Nut Gripper SetIncludes: 2450X Nut Gripper Sockets:5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14 Rail (150mm long)Socket Depth40MM