HR4041C 1-9/16" Rotary Hammer DrillPOWER : 12 AMP motor delivers 230 460 RPM PERFORMANCE : Constant speed control applies additional power to the motor to maintain speed under load DURABILITY : Torque limiting clutch prevents gear damage by automatically disengaging gears during bit bind up EFFICIENCY : No hammering while idling helps increase tool life INCLUDES : Side handle, D handle, depth gauge and case About Model The Makita HR4041C 1 9 16 in. Spline Shank Rotary Hammer Drill