The 40V max XGT® Brushless 1-1/8” AVT® Rotary Hammer Kit (GRH01M1) is a cordless concrete solution designed for heavy-load applications. It delivers the power, speed, and run-time for corded demands, without the cord. XGT technology delivers up to 135 of 3/8” holes per charge when using one 40V max XGT 4.0Ah Battery.
The Makita-built brushless motor delivers a full 2.8 ft. lbs. of impact energy, with 0-980 RPM and 0-5,000 BPM. Constant speed control automatically applies additional power under load for optimum performance.
The GRH01M1 features Active Feedback-Sensing Technology (AFT®), which electronically turns off the motor if rotation of bit is suddenly forced to stop, and Anti-Vibration Technology (AVT®) for reduced vibration. More than just a padded handle, AVT is an internal counterbalance that uses air pressure to move counterweight pistons in the opposite direction of the drive piston to actively reduce vibration. In addition, the vibration-absorbing back handle and side handle further reduce vibration. For added durability in harsh job site conditions, Extreme Protection Technology (XPT™) is engineered for improved dust and water resistance.
The rotary hammer has dust extraction capability with an OSHA Table 1 compliant on-board HEPA dust extractor attachment (sold separately) or standalone with Auto-Start Wireless System (AWS®). AWS uses Bluetooth® technology for wireless power-on and power-off communication between the equipped tool and dust extractor. Once connected via AWS, the AWS-equipped dust extractor will automatically power on or off when the AWS-equipped cordless tool starts or stops, running only when the tool is in use. This increases productivity on a single charge and reduces continuous noise at the job or work site.
The torque limiting clutch is engineered to prevent gear damage by automatically disengaging the gears if the bit binds, and constant speed control automatically adds power to the motor to maintain speed under load to complete the most demanding jobs. Additional performance features include an electric brake, variable speed dial, built-in L.E.D. light, and a retractable tool hook.
It is ideal for a range of trades including mechanical/electrical/plumbing contractors, concrete contractors, road and bridge contractors, utility workers, pest control, maintenance operations, and more. It accepts SDS-PLUS bits.
XGT is a system of equipment, tools, batteries and chargers utilizing 40v max lithium-ion batteries. XGT is engineered to deliver high power to take on high-demand applications, allowing users to completely transition to a cordless job site. XGT is equipped with advanced brushless motor engineering, intelligent digital communication, and superior durability features to outpower, outsmart and outlast the rest.
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
XGT® technology delivers up to 135 of 3/8" holes using a fully charged 40V XGT® 4.0Ah battery*
Active Feedback-Sensing Technology (AFT®) electronically turns off the motor if rotation of bit is suddenly forced to stop
Anti-Vibration Technology (AVT®) is an internal counterbalance system along with vibration-absorbing handles that work together to reduce vibration
Dust extraction capability with OSHA Table 1 compliant on-board HEPA Dust Extractor or stand-alone AWS® Extractor options
Auto-Start Wireless System (AWS®) utilizes Bluetooth® technology for wireless power-on/off communication between tool and dust extractor (AWS® Transmitter and dust extractor 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 dial and trigger enables user to match the speed to the application
Built-in L.E.D. light with an independent on/off illuminates the work area
Ergonomic soft-grip handle and large 2-finger trigger provide increased comfort on the job
3-mode operation for "Rotation Only", "Hammering with Rotation" or "Hammering Only" for multiple applications
Retractable tool hook secures the tool when not in use
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
40V max XGT® Lithium-Ion 4.0Ah Battery (BL1840) reaches a full charge in 45 minutes or less
Compatible with Makita® 40V max XGT® Lithium-Ion Batteries
Only use genuine Makita batteries and chargers
3-year limited warranty on tool, battery and charger
*Tested 2-3/8" deep holes in 5,000 PSI concrete
XGT® is a new 40V | 80V max system of cordless equipment and tools. XGT outpowers, outsmarts, and outlasts the rest. Through Makita’s innovative engineering, the technology within XGT will lead to creating the equipment and tools of the future [Learn More]
Makita takes another step toward a truly cordless job site with Auto-Start Wireless System. AWS® uses Bluetooth® technology for wireless power-on and power-off communication between the equipped tool and dust extractor. AWS® is intelligent communication that eliminates cords and excessive noise since the dust extractor runs only when trigger-activated by an AWS® tool. When the trigger is released, the dust extractor powers-down. The Makita AWS® dust extractor (XCV08Z) is powered by two 18V LXT® batteries for maximum performance, and users benefit with an expanding AWS® system that includes cordless tools for concrete, metal and woodworking.
When the job takes your Makita tool into harsh conditions, Makita Extreme Protection Technology (XPT™) provides added protection. XPT™ is a series of integrated seals engineered to channel away dust and water for increased durability. Wherever the job takes you, Makita tools equipped with XPT™ are engineered for increased durability and longer tool life.
Anti-Vibration Technology (AVT®) is a counterbalance system inside the tool that significantly reduces vibration. The AVT® counterbalance design is based on seismic engineering, which developed this damping science to absorb shocks and protect buildings from earthquakes. AVT® uses a mechanical damper, effectively a counterbalance weight inside the tool, that provides an equal and opposite force that puts a mass directly opposite the point where the striker bolt delivers the impact. As vibration is eliminated, power is efficiently increased which allows more of the generated energy in the motor to be delivered to the tool bit. Makita also has an AVT® counterbalance system in select recipro saws. For users, AVT® means significantly less vibration with no compromise in power and performance. [Learn More]