Makita HP1640K Hammer Drill 5/8" 680W Dual purpose for "Rotation only" and "Rotation with hammering". New reversing system allows: Extended service life of carbonbrush. no power reduction even in reverse rotation. In-line positive grip design maximizes power thrust. Large trigger switch for easy operation. Specifications: Continuous rating Input: 680W Capacity: Concrete : 16mm (5/8") Steel : 13mm (1/2") / Wood : 30mm (1-3/16") Impacts per minute (ipm): 0-44,800 No load speed (rpm): 0-2,800 Net Weight: 2.0kg (4.4lbs) Inclusions: Side Handle, Depth Gauge, Chuck Key, Chuck Key Holder Lifetime Service Warranty-Direct to Makita Service Center