Makita HR4002 1-9/16″ Rotary Hammer, SDS-Max, 2-mode, Variable Speed CaseMakita owes its reputation for building outstanding quality power tools to the drive and determination for excellence that began over 85 years ago as a manufacturer of electric motors. In 1958, Makita introduced their first electric tool and today Makita is one of the world’s largest power tool manufacturers.Makita HR4002 1-9/16″ Rotary Hammer, SDS-Max, 2-mode, Variable Speed Case Features:; Built-in torque limiting clutch disengages if bit jams; Powerful 10 AMP motor delivers for the most demanding applications; One-touch sliding chuck for quick & easy bit changes; Dual mode operation Rotation with hammering and Hammering only make this tool; Soft grip helps reduce the level of vibration felt by the end-user; No Hammering when idling increases the tool life and performanceMakita HR4002 1-9/16″ Rotary Hammer, SDS-Max, 2-mode, Variable Speed Case Specifications:; Capacity: – Concrete (with core bits): 4-1/8″ ; No Load RPM: 0 – 680 ; Blows/min.(BPM): 0 – 2,500 ; Impact Energy (J): 5.8 ; AMPS: 10.0 ; Overall Length: 18″ ; Net Weight (lbs.): 13.7 ; TOOL INCLUDES:- Side Handle (158131-0)- Depth Gauge (321248-4)- Plastic Carrying Case (158275-6)- Grease (181573-3)