ELECTRIC TOOLS > HIOS Hios developed an unique and ideal clutch mechanism, Plane Touch System, for electric drivers and it has been used for the first CL-Drivers. CL-Driver is a progressed screwdriver with simple and effective operation. It is not only safe but also an easy-maintenance products. With the exact and precise torque adjustment and easy maintenance advantages, CL-Drivers are widenly accepted by many customers. CL-Driver is the sign of HIOS's success. Your assembly line will become more efficient than ever once you equipped with HIOS screwdriver and torque meter. In addition to VESSEL bits and ACE Spring Balancers, they will help your production in a fast smooth level.