About this product
The 40V max XGT® Brushless 1-9/16” AVT® Rotary Hammer Kit (GRH05M1) is a cordless concrete solution designed for heavy-load applications. It delivers the power, speed, and run-time for corded demands, without the cord. The GRH05M1 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.
Auto-Start Wireless System (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. Constant speed control automatically applies additional power under load for optimum performance. 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, a soft-start to suppress start-up reaction, and Soft No-load function that automatically reduces the speed of the motor when idling. The Rotary Hammer has dust extraction capability an optional Makita Dust Attachment Kit (sold separately).
It has 2-modes of operation - "Hammering with Rotation" or "Hammering Only". The GRH05M1 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.
Features
Anti-Vibration Technology (AVT®) is an internal counterbalance system along with vibration-absorbing handles that work together to reduce vibration
Active Feedback-Sensing Technology (AFT®) electronically turns off the motor if rotation of bit is suddenly forced to stop
Electric brake allows the tool to be repositioned faster for maximum productivity
Dust extraction capability with optional Makita Dust Attachment Kit
Constant speed control automatically applies additional power under load for optimum performance
Soft start suppresses start-up reaction for improved accuracy
Soft no-load" function automatically reduces the speed of the motor when idling to help increase tool life and performance
Built-in L.E.D. light with an independent on/off switch illuminates the work area
Variable speed control dial enables the operator to match the speed to the application
Large Multi-finger power trigger for increased comfort during extended use
2-mode operation for "Hammering with Rotation" or "Hammering Only" for increased versatility
Torque limiting clutch engineered to prevent gear damage by automatically disengaging gears during a bind-up situation
40V max X2 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
Makita-built brushless motor along with 40V max XGT® battery combine to deliver the power performance required for heavy-load application
Automatic-start Wireless System (AWS®) for wireless power-on/off communication between tool and dust extractor (AWS® Transmitter sold separately)
Includes
40V max XGT® Brushless 1-9/16" AVT® Rotary Hammer, AFT®, AWS® Capable (GRH05Z)
40V max XGT® 4.0Ah Battery (BL4040)
40V max XGT® Rapid Optimum Charger (DC40RA)
Side Handle Assembly (123138-5)
D-Handle Assembly, HR4013C (196792-8)
Depth Gauge (331955-1)
Hammer Bit Grease (194683-7)
CLOTH F/WIPING OIL (443122-7)
Tool Case
Specifications
- System: 40V max XGT®
- Max. Capacity (concrete drilling): 1-9/16"
- Optimum Range (concrete drilling): 5/8" - 1-1/4"
- Max. Capacity (concrete drilling w/ core bit): 4-1/8"
- Impact Energy (ft.lbs.): 8.4
- Impact Energy (Joules): 11.4 J
- Blows Per Minute (variable speed): 1,450 - 2,900 BPM
- No Load Speed (variable speed): 250 - 500 RPM
- Bind-Up Control: Yes
- Vibration Control: Yes
- Vibration (m/s²): 5
- Automatic-start Wireless System (AWS™): Capable (transmitter sold separately)
- Bit Type: Accepts SDS-MAX
- Overall Length: 19-3/4"
- Net Weight (with battery): 17 lbs.
- Shipping Weight: 34.97 lbs.
- Power Type: Cordless
- Country of Origin: Japan
