-Indicator Light: This heavy duty impact drill for concrete is designed with indicator lights to protect the machine. When the machine is overloaded or needs to replace the carbon brush and other faults, you can know its working condition through the indicator light.  

-3 Speed Control: This sds hammer is easy to adjust 3 speeds to suit different working scenarios. The maximum unloading speed is up to 550r/min, the impact frequency is up to 3850bpm, and provides 9j impact energy. Ideal for drilling up to 42mm wood, walls, 13mm steel and 32mm concrete. The SDS Max chuck is designed to increase your productivity.