The product life cycle is significantly extended by eliminating troubles with armature burnout, layer short and commutator wear. Besides, no carbon brush replacement is required. The efficient brushless motor offers higher drilling performance even with an extension cord used. Designed to be powered by engine generators as well, thanks to Our original compact and high efficiency inverter circuit. The high efficiency brushless motor and the optimized hammering mechanism achieve the fastest drilling speed* and the highest demolition performance* in its class.

As of March 2015. Among 45mm class rotary hammers made by leading power tool manufacturers, surveyed by Koki Holdings.
reduces the vibration from concrete drilling or chiseling by moving a weight and a leaf spring in the opposite direction to the movement of the hammer.provides high vibration-absorbing effect by employing both transatory and hinge units. makes the housing more rigid, significantly enhancing durability of the motor unit.