Features Rotary Hammer 40mm Adapted for Hex Shank from Makita Make tough jobs easier with electronic control features and compact design. (Hex Shank type) No hammering while idling When drill bit hits against reinforcements, torque limiter operates to stop Aluminum housing provides high quality and toughness Auto cut-out carbon brush Electronic variable speed control dial enables to select speed to job Standard Equipment: Depth Gauge, Side Grip(Tool does not come with bit.) Double Insulation Variable Speed Torque Limiter Constant Speed Soft Start Continuous rating input / 1,100W Capacity / Concrete (with T.C.T. bit) : 40mm (1-9/16") Capacity / Concrete (with Core bit) : 118mm (4-5/8") Impacts per minute (ipm) / 1,300 - 2,600 No load speed (rpm) / 230 - 460 Sound pressure level / 92dB(A) Sound power level / 103dB(A) Vibration level / 9m/s² Dimensions (L x W x H) / 413x107x247mm (16-1/4"x4-1/4"x9-3/4") Net weight / 6.9kg (15.2lbs) Power supply cord / 5.0m (16.4ft)