The DeWalt 20V Max SDS Rotary Hammer Drill is now just $147, down over $100 from its regular price of $249.It has earned the No. 1 bestseller spot for Power Rotary Hammers and has sold over 800 units in the past month.The drill features a brushless motor for a long lifespan and offers three operating modes for drilling through tough concrete.With its lowest price of the year, the DeWalt 20V Max hammer drill is already a bestseller and may sell out soon.