Dewalt Power Tools DCH172N Ultra-Compact XR SDS Plus Rotary Hammer 18V Bare Unit D2-C_ZDRA simply discard the dirty water

simply discard the dirty water and rinse off with soapy water

but has many other uses

It allows the air to pass though

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Dewalt Power Tools DCH172N Ultra-Compact XR SDS Plus Rotary Hammer 18V Bare Unit D2-C_ZDRA simply discard the dirty waterThe DEWALT DCH172 Ultra Compact XR SDS Plus Rotary Hammer has a brushless motor for extreme run time and reduced maintenance. The 2 mode operation allows for either Rotary Hammer or Rotary Only modes. Compact, lightweight and ergonomic design for improved comfort and support during extended operating periods. A bright white LED with a delay feature improves visibility. There is also a convenient tether point so you can keep it secure when working at