The HR004GZ01 is a cordless SDS-Plus Rotary Hammer, powered by 40V Li-ion XGT battery to supply energy to the powerful 40V brushless motor, with variable speed controlled by trigger & constant speed control to apply addition power to the brushless motor to maintain constant speed under load, to deliver up to 980 rpm, 5, 000 bpm & 2.9 J impact energy. The HR004GZ01 is equipped with one touch sliding chuck for quick & easy bit installations & removals, reverse rotation, depth gauge for increased drilling consistency & 3 operating modes for rotary only, rotary with hammer & hammer only. The HR004GZ01 features a torque limiter to stop the drill rotation if the bit hits against reinforcements, anti-vibration technology (AVT) to lower vibration & soft no load function to automatically reduce the motor speed during idling to suppress the vibration of the machine body. The HR004GZ01 is supplied with an SDS-Plus quick change chuck. Maximum capacity in steel 13mm, wood 32mm, concrete 28mm, TCT core 54mm & diamond core 65mm.