Highest Demolition Performance and Fastest Drilling Speed in its class. Industry first AC Brushless Motor. Unique Maintenance-free Brushless motor provides significantly longer life. No carbon brush replacement required. None of the traditional problems from conventional brushed commutator motors. Stable Performance under voltage drop situations. Unlike conventional electric Rotary hammers, drilling performance isn’t affected as much by voltage drop from long extension leads on site. Example: 100mm extension load, 2.0mm² conductor. Performance of conventional models drop by approximately 14%, new Brushless models decrease by just 3%. Stable Performance when used with Generators. Brushless design operates consistently and without the traditional problems cause by generator use. Requires suitably sized Generator output.
Fastest Drill speed in its class – Up to 20% faster* Highest Demolition Performance in its class – Up to 40% high performance* Ultra low vibration due to original, spring-type dynamic vibration absorber & vibration absorbing side-handle – Approx. 15% lower vibration value* Original, spring-type dynamic vibration absorber with a weight and two springs moves in the opposite direction to the vibration direction of the main body. This results in reduced vibration and improved operating efficiency. Aluminium Housing Body (AHB) provides a super strong aluminium die-cast body with internal double-insulation making the housing more rigid, significantly enhancing durability of the motor unit Improved handling with constant speed control & 4-stage electronic switching to adjust the drilling speed and impact rate One-touch quick change SDS MAX chuck Large change lever & trigger switch – easy to operate wearing gloves 2-mode – Hammer only and Hammer Drilling Variable lock mechanism allows 12 different chisel angles (hammer only) *A comparison of the model DH40MEY(G1) and the previous model DH40MRY. The results may vary depending on operating conditions