Koken Tools launched a new line of products with the Z-Series, including various types of sockets and socket sets, ratchets, hinge handles, extension bars, universal joints and quick spinners. These tools offer a variety of custom modifications adapted to better satisfy customer needs. The compact design of these tools is 5-9mm shorter than standard designs, making them ideal from working in tight areas. Manufacturing tolerances of the hexagon opening and square drive are precisely controlled, and the tight tolerances and ball mechanism gives a secure connection between the socket and handle.