Powerful 15 Amp motor delivers 14 ft. lbs. of impact energy to handle the most demanding applications

Anti-vibration technology (AVT) is a synchronized， 3-component system that more effectively reduces vibration resulting in a low 9 m/s2

Air actuated counterbalance directs air pressure from the crank and barrel room into the counterbalance cylinders to move counterweight pistons in the opposite direction of the drive piston actively reducing vibration

Vibration absorbing housing features a spring loaded main handle and upper housing that move independently of the motor and drive mechanism effectively isolating most of the vibration away from the user both at the rear handle and side handle

Integrated damper spring at the base of the impact bolt is engineered to absorb impact vibrations from the drill bit

Lock-on or trigger activation in chipping only "mode with a push button start/stop control for more convenient operation"

Constant speed control automatically applies additional power to the motor to maintain speed under load to complete the most challenging jobs

Soft start suppresses start-up reaction for more control and better accuracy

LED service light notifies the user approximately 8 hours before the brushes need to be replaced

LED power light indicates switch failure or cord damage

Variable speed control dial enables user to match the speed to the application for greater versatility

Torque limiting clutch engineered to prevent gear damage by automatically disengaging gears if the bit binds

Sequential impact timing delivers timed hammering during rotation to minimize overlapping bit impacts for up to 50% faster drilling

Automatic brush cut-off protects commentator from damage for longer tool life

2-mode operation for chipping only or hammering with rotation

24 bit angle settings allow the bit to be set at different positions for operating convenience

1 touch sliding chuck for quick bit changes

Includes: depth rod， HR4013C (331955-1)， hammer bit grease (194683-7)， cloth f/wiping oil (443122-7)， D-handle (417003-1)， straight handle (454781-2) (454781-2)， straight handle assembly (135629-4)

Accepts SDS-MAX bits

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