Featuring 7,900 items including Z-EAL, hand sockets, and insulated tools!
The "KOKEN Comprehensive Catalog" is published by Yamashita Industrial Research Institute, a manufacturer specializing in socket wrenches. It introduces various products, including the "Z-EAL" series, which features a "Z" designation in its model number, as well as "hand sockets" and "insulated tools." Socket wrenches are incomplete tools that cannot perform tasks on their own; however, by using them in conjunction with sockets that engage with bolts, driving handles, and other attachments, they allow for an almost infinite combination of uses. They transform into versatile tools that can flexibly adapt to various tasks. [Contents (partial)] ■ Relentless pursuit of socket wrenches ■ Technical Features of Ko-ken Tools ■ Company Overview ■ Registered Trademarks ■ Z-EAL *For more details, please refer to the PDF document or feel free to contact us.
Inquire About This Product
basic information
【Published Products】 ■Z-EAL ■Hand Socket ■Titanium Alloy Socket ■Insulated Tools ■T-Type Handle ■Accessories ■Screwdrivers ■Impact Sockets ■Vibration-Resistant Sockets ■Industrial Sockets ■Protector Sockets ■Automotive-Specific Tools ■Construction Tools ■Repair Kits *For more details, please refer to the PDF document or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
For more details, please refer to the PDF document or feel free to contact us.
catalog（2）
Download All Catalogs
Company information
Yamashita Industrial Research Institute Co., Ltd. is a specialized manufacturer that only produces socket wrenches. In order to meet our customers' requests and needs, we prioritize "ease of use" and "workability" in our planning and manufacturing processes. We will continue to make further efforts and research to receive feedback such as "I'm glad I chose Ko-ken products; this product has helped me work more efficiently."
