Hitachi DH40MEY 1-9/16-Inch SDS Max Brushless Rotary Hammer

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Ultra efficient AC Brushless motor extends product life and eliminates maintenance of armatures or carbon brushes
UVP (User Vibration Protection) technology greatly reduces vibration for comfortable extended use and fewer vibration related injuries
AHB (Aluminum Housing Body) construction significantly enhances the internal and external durability of the tool
Superior performance when using a generator due to an internal inverter circuit that regulates uneven power supply
Large change lever located for easy access on top of the tool, rotates for hammer drilling, hammer only or neutral
Push button rotation speed selector switch transitions between four power levels of impact and rotation speed to match the application
Built-in protection circuit prevents damage to the tool in the event of an abnormality like overload, binding, overheating etc
Variable lock mechanism in neutral position allows for 12-angle positions for optimal working angle options
Constant speed control increases power to the tool when under load to keep speed constant for smooth drilling
Quick release bit system for fast and simple bit replacements for different applications


The DH40MEY Rotary Hammer with AC Brushless Motor, UVP (User Vibration Protection) and AHB (Aluminum Housing Body) is the perfect combination of performance and comfort. With top class drilling speed along with UVP, this hammer is made for hard work. It features the AHB construction that provides significant durability and extended tool life. The Brushless Motor allows the tool to operate over an extra long extension cord without power loss, and also eliminates maintenance of armatures or carbon brushes. This rotary hammer delivers superior performance when powered by a generator due to an internal inverter circuit that regulates uneven power supply for ultimate jobsite convenience.