The Makita HR3540C SDS Max Rotary Hammer provides 3 modes of operation: Rotary drilling, Hammer drilling or Chiseling.. With electronic power control for greater comfort and a torque-limiter for additional operator protection. The drill stops when the bit hits against reinforcements. The variable speed trigger helps to provide constant speed, even under load. It is fitted with an anti-vibration system for reduced vibration for less operator fatigue. Comes with: 1 x Side Handle, 1 x Depth Stop, 1 x Bit Grease and 1 x Carrying Case. Specification: Input Power: 850W No Load Speed: 315-630/min. Impact Rate: 1,650-3,300/bpm Impact Energy: 5.6 joules Max. Drilling In Concrete: 35mm Max. Core Diameter (TCT): 90mm Weight: 5.2kg Makita HR3540C SDS Max Rotary Hammer 110V version.