The DEWALT DCH775N XR FlexVolt SDS Max Rotary Hammer is a high-quality power tool designed for heavy-duty drilling tasks. Featuring a 54V Brushless motor, this rotary hammer drill offers a maximum torque impact rate of 1,105-2,210/bpm and a speed range of 145-290/min. This yellow-coloured tool is perfect for DIY enthusiasts and professionals alike. The SDS chuck size allows for easy bit changes, while the lithium-ion battery technology ensures long-lasting power. The compact size and heavy-duty features make this rotary hammer drill a versatile and reliable addition to any workshop. Any questions, please ask and I will try to help. Visit manufacturers website for technical specs Thanks