The 40V max XGT® Brushless 1-1/8" AVT® Rotary Hammer with Dust Extractor Kit (GRH07M1W) is a cordless concrete solution engineered for heavy-load applications. It delivers the power, speed, and run-time for corded demands, and features a convenient D-handle design that is ideal for overhead, downward or hard-to-reach horizontal drilling/chipping applications.

Key Features

• OUTPOWER: Makita-built brushless motor along with 40V max XGT® battery combine to deliver the power performance required for heavy-load application
• OUTSMART: Constant speed control automatically applies additional power under load for optimum performance
• OUTLAST: Overload protection is designed to protect the motor from burnout in abnormally high torque situations
• Delivers 2.7 ft. lbs. of Impact Energy 0-980 RPM, 0-5000 BPM
• Active Feedback-Sensing Technology (AFT®) electronically turns off the motor if rotation of bit is suddenly forced to stop
• Anti-Vibration Technology (AVT®) is designed to reduce vibration for increased comfort
• Dust extraction capability with OSHA Table 1 compliant on-board HEPA Dust Extractor or optional stand-alone AWS® Extractor
• Auto-Start Wireless System (AWS®) which utilizes Bluetooth® technology for wireless power-on/off communication between tool and dust extractor (AWS® Transmitter sold separately)
• Electric brake allows the tool to be repositioned faster for maximum productivity
• Torque limiting clutch engineered to prevent gear damage by automatically disengaging gears during a bind-up situation
• Variable speed trigger enables user to match the speed to the application
• D-handle design is ideal for overhead, downward or hard-to-reach horizontal drilling/chipping applications
• Ergonomic soft-grip handle and large 2-finger trigger provide increased comfort on the job
• Built-in L.E.D. light with an independent on/off illuminates the work area
• Tethering loop/hanging hook helps secure the tool when working at heights or on a lift (sold separately)
• 3-mode operation for "Rotation Only", "Hammering with Rotation" or "Hammering Only" for multiple applications
• Multiple bit angles allow the bit to be set at different positions for increased comfort
• Extreme Protection Technology (XPT™) is engineered for improved dust and water resistance for operation in harsh conditions
• The digital communication within XGT® optimizes performance to provide up to 2X longer sustained power under heavy-load applications
• The digital communication within XGT® actively monitors and protects against overload, over-discharge and overheating
• XGT® Tools and Batteries are designed with a multi-layer contact interface for more constant power delivery to take on high-current demands
• XGT® Batteries feature rigid rails with impact-resistant construction to secure the battery to the tool during high-demand applications
• The XGT® Rapid Charger with dual-fan design circulates air through the battery to cool the battery and circuit board quickly for faster charging
• The XGT® Rapid Charger’s digital display indicates battery charge level (-80%, +80%, 100%)
• The XGT® Rapid Charger’s built-in chip thoroughly communicates during the charging process to control current, voltage, and temperature for more efficient charging

Technical Specifications

Included Accessories

• 40V max XGT® Brushless 1-1/8" SDS-PLUS AVT® Rotary Hammer (D-Handle), AWS® Capable (GRH07Z)
• 40V max XGT® 4.0Ah Battery (BL4040)
• 40V max XGT® Rapid Optimum Charger (DC40RA)
• Dust Extractor Attachment with HEPA Filter Cleaning Mechanism (DX15)

Manufacturer Resources

Makita GRH07M1W product details and documentation