The 1-9/16A AVTA® Rotary Hammer (model HR4013C) has 45% less vibration and 20% more impact energy than the previous model. It is engineered with enhanced Anti-Vibration Technology (AVTA®), a synchronized three-component system for significantly less vibration. The result of the enhanced AVTA® is a category-leading vibration rating of 5m/sA².
Features:
Powerful 11 AMP motor delivers 8.4 ft.lbs. / 11.4 J. of impact energy to handle the most demanding applications
Advanced Anti-Vibration Technology (AVTA®) is a synchronized, three-component system that more effectively reduces vibration resulting in a low 5m/s2
Advanced AVTA® includes an air actuated counterbalance that directs air pressure from the crank and barrel room into the counterbalance cylinders to move counterweight pistons in the opposite direction of the hammer mechanism to effectively reduce vibration
Advanced AVTA® includes a vibration absorbing housing with a spring loaded back handle and housing which moves independently of the motor and hammer mechanism effectively isolating more vibration away from the user
Advanced AVTA® includes an integrated damper spring at the base of the impact bolt engineered to absorb impact vibrations from the drill bit
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 precision and better accuracy
"Soft no-load" function automatically reduces the speed of the motor when idling to help increase tool life and performance
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
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