The Makita HR3540C SDS Max Rotary Hammer 850W 110V 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. Specifications: 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.