The makita dhr281 brushless lxt rotary hammer is powered by 2 x 18v li-ion batteries in series, to supply energy to the powerful 36v dc motor drive system. Supplied with a quick change chuck for rotary-only drilling. It has a powerful brushless motor with a 'soft no load' function that automatically reduces the motor speed during idling to suppress the vibration of the machine body. The variable speed is controlled by a trigger and it offers 3 operating modes: rotary only, rotary hammer and hammer only. Anti-vibration technology decreases fatigue during use. There is also an electric brake for added safety and an led job light. Features & benefits brushless motor electric brake variable speed control by trigger constant speed control forward reverse rotation led job light 3x operating modes ro rh ho torque limiter soft no load function automatically reduces the motor speed during idling anti vibration technology specifications battery voltage: 36v 18v x2 battery type: lithium-ion blows per minute: 0-5,000bpm impact energy: 2.8J max. In concrete diamond core : 65mm max. In concrete tct core : 54mm max. In concrete: 28mm max. In steel: 13mm max. In wood: 32mm no load speed: 0-980rpm noise k factor: 3db a noise sound power: 103db a noise sound pressure: 92db a optimum drilling range: 4-16mm shank: sds plus vibration chiselling: 9.0 M sec vibration drilling metal: 2.5M sec vibration hammer drilling: 9.5M sec vibration k factor: 1.5M sec net weight: 4.0-5.1Kg contents dhr281 t...