The Makita 8406 Percussion Diamond Drill has a heavy-duty construction ideal for site work and a torque limiter to prevent operator injury if the core bit snags. The percussion action is for drilling the pilot hole and the rotary action is for dry diamond core drilling. Other features include a variable speed trigger, and double insulation to protect the user. The drill is excellent for plumbers, electricians and general contractors. Supplied with: 1 x Chuck Key, 1 x Side Handle, 1 x Carry Case. Specifications: Input Power: 850W.No Load Speed: 0-1,500/min.Blows Per Minute: 0-22,500/bpm.Capacity: Masonry: 20mm, Steel: 13mm, Wood: 30mm.Max. Dry Diamond Core: 152mm.Weight: 3.7kg. Vibration drilling: 2.5 m/sec².Vibration hammer drilling: 9.5 m/sec².Vibration K factor: 1.5 m/sec².Noise sound power: 105 dB(A).Noise sound pressure: 94 dB(A).Noise K factor: 3 dB(A).