THE ONLY & ONE IN KOREA SCREW FASTENING SYSTEM SPECIALIST Sehan was established in 1969 as a distributing company specialized in assembly tools under the company name of Sehan Company. Based up on our experience about tolls that have various characteristics, we have accumulated technology related to the fastening tools. From 1980s, we have been focusing our business lines on specific tools for screw fastening. Due to the characteristics of screwdrivers in the aspects of precision mechanic and usage, the handheld screwdrivers have quite a different market from other power tools. Sehan Electools Ltd. has been taking firm root as a company specialized in the production of torque control screwdrivers. And we firmly believe that Sehan will grow in to a world-class specialized company, devotion to producing top-notch electric screwdrivers.