"FOR THE MASTER MECHANIC" is a theme that has consistently driven Ko-ken Tools since the beginning. Ko-ken tools are problem solvers designed by people who truly understand the needs of the auto industry.
JAPANESE QUALITY Koken manufactures high quality hand sockets & accessories in their state-of-the-art factory in Japan. Founded in 1946 Ko-ken Tools, is a fourth-generation family owned and operated business. In 1995, Koken was the first Japanese manufacturer to obtain ISO 9002 Certification, and in 1999 they were awarded ISO 9001 Certification.
LIFETIME GUARANTEE Every Ko-ken tool is made to perform far beyond its intended use and come with Ko-ken's Lifetime Guarantee.
Z series – The mechanics new standard for the next generation of automotive tools
Designed for lower profile applications in difficult to get to locations Z-Series sockets are thin-wall and shorter in height than standard sockets, WITHOUT sacrificing either quality or strength. Z stands for Zeal, for Ko-ken this means an enthusiasm for automotive excellence.
