The Panasonic EY78A1 SDS Plus Rotary Hammer Drill & Driver is fitted with a 5 stage torque clutch plus drill position and electric speed control for increased control even in high-speed applications. The drill has a & lsquoT shape&rsquo design for improved balance and ergonomics and offers 2 modes of function Rotary Hammer or Drill & Driver. Specification Chuck SDS Plus Modes Rotary Hammer or Drill Driver No Load Speed 0-1,250/min. Impact Rate 0-4,750/bpm The Panasonic EY78A1XT SDS Plus Rotary Hammer Drill comes as a Bare Unit, No Battery or Charger. It is supplied in a handy Systainer Case. The Systainer Case System is widely used in the power tool industry by Festool, Mafell and other brands, so the tradesman can stack and connect our cases with any of the other Systainer cased brands.