The Makita HR2811F SDS Plus Rotary Hammer Drill offers 3 functions: Rotary drilling, Hammer drilling or Chiseling. It is fitted with an anti-vibration system. The variable speed trigger allows for precise control even in tough applications. It also has the option of forward/reverse rotation and a job light. Supplied with: 1 x Side Handle, 1 x Depth Stop and 1 x Carry Case. Specification Input Power: 800W No Load Speed: 0-1,100/min. Impact Rate: 0-4,500/bpm Impact Energy: 2.8 joules Capacity: Steel 13mm; Wood 32mm; Concrete: TCT 28mm, Core 80mm Weight: 3.5kg Vibration Drilling: 2.5 m/sec² Vibration Hammer Drilling: 15 m/sec² Vibration Chiselling: 11.5 m/sec² Vibration K Factor: 1.5 m/sec²