koken

we are the north american source of ko-ken tools from japan. our parent company, ko-ken tools, is a fourth generation family owned and operated business in japan, with 140+ employees. the focus of the business is entirely on sockets and socket wrenches.

kleine moeite, groot effect

株式会社山下工業研究所のウェブサイト。ニュースリリース、製品、サポート、カタログをご紹介します。