Ko-ken Europe, the official European centre for Japanese Ko-ken tools

Ko-ken Europe S.A. was founded in 1975 by Klaus and Johanna Bannasch and provides over 45 years’ experience for your benefit. It is the European distribution centre for Japanese Ko-ken tools. Its headquarters are located in the Grand Duchy of Luxembourg. Since its foundation, Ko-ken Europe has moved three times, to larger premises. It has occupied its current premises since 1992.

We take care personally


We are here to help you

Our team is there for you. Should you have any question, an order, special requests or a trouble, we remain at your disposal and will be happy to help you. Ko-ken stands for high quality, flexibility, reliability, and confidentiality for client satisfaction.

Our mission: to satisfy you

Our staff of 8 employees speaks English, German, French and Luxembourgish and deals with 25 countries. Our premises are located close to Luxembourg airport and main motorways. We receive regular delivery from Japan and we ship order daily throughout Europe, by carrier or express courier, depending on countries and requests.

R&D and tailor-made tools

In case of specific needs, we develop customised solutions that meet the particular requirements of our customers: specially designed handles, nut busters, nut twisters, etc. In this case, the development, calibration, test and production process will take at least three months.

Japanese reliability from the heart of Europe

A regularly replenished stock

8,500 references are stored in our 1,000 sq. m premises in Hamm (Luxembourg). 90% are always in stock, and we commit ourselves to replenish stocks on a regular basis. Ko-ken undertakes to repair or replace any material or manufacturing defects through its distributors, to the exclusion of further liability.

Always more performing tools in your hands

Ko-ken tools are designed and manufactured by the highly specialized company Ko-ken Tool Co., Ltd. in Japan. The current 320- page catalogue contains some 8,500 references, 90% of which are always in stock, and new products are regularly released.

Higher quality tools

The Ko-ken Tool Co., Ltd. Shizuoka, Japan factory guarantees the superior quality and finish of tools bearing the Ko-Ken label. Each Ko-ken tool that leaves the factory is inspected carefully. The manufacturing processes at the Ko-ken Tool Co., Ltd. factory have been certified in accordance with ISO 9001 since 1995.

Ko-ken Tool Co., Ltd. in Japan

Ko-ken Tool Co., Ltd. was founded in 1946 and has manufactured sockets and socket drivers for four generations with the aim of supplying the very best quality to its customers. Its headquarters are in the city of Kakegawa, Shizuoka prefecture (south-west of Tokyo), in Japan