The Makita GRH07M1W is a game - changer in the world of cordless concrete tools. This 40V max XGT® brushless rotary hammer with a dust extractor is specifically engineered for heavy - load jobs. It brings the power, speed, and long run - time that were once only possible with corded tools. The D - handle design is a practical choice, perfect for overhead, downward, or hard - to - reach horizontal drilling and chipping work.
At the heart of this tool is a Makita - built brushless motor that delivers a whopping 2.7 ft. lbs. of impact energy, with a variable speed range of 0 - 980 RPM and 0 - 5,000 BPM. The constant speed control feature automatically adds extra power when under load, ensuring top - notch performance.
Safety and comfort are key with this product. The Active Feedback - Sensing Technology (AFT®) shuts off the motor if the bit's rotation is suddenly stopped. The Anti - Vibration Technology (AVT®) significantly reduces vibration, not just with a padded handle but through an internal counterbalance system. The vibration - absorbing back and side handles further enhance comfort.
In harsh job site conditions, the Extreme Protection Technology (XPT™) offers excellent dust and water resistance. The rotary hammer comes with dust extraction capabilities. It has an OSHA Table 1 compliant on - board HEPA dust extractor attachment (model DX15), and users can also opt for a standalone dust extractor with the Auto - Start Wireless System (AWS®). The AWS uses Bluetooth® technology for seamless wireless communication between the tool and the dust extractor, powering it on and off automatically as the tool starts and stops.
The torque - limiting clutch protects the gears by disengaging them if the bit binds. Other useful features include an electric brake for quick repositioning, a variable speed dial, a built - in L.E.D. light to illuminate the work area, and a tethering loop/hanging hook for secure use at heights.
This tool is suitable for a wide range of trades, including mechanical, electrical, and plumbing contractors, concrete workers, road and bridge builders, utility workers, pest control operators, and maintenance crews. It accepts SDS - PLUS bits.
The XGT system, which includes equipment, tools, batteries, and chargers using 40V max lithium - ion batteries, is designed to provide high power for high - demand applications. It enables users to fully transition to a cordless job site with its advanced brushless motor engineering, intelligent digital communication, and superior durability.
The kit includes a 40V max XGT® brushless 1 - 1/8' AVT® rotary hammer (D - Handle), AWS® capable (GRH07Z), a 40V max XGT® 4.0Ah battery (BL4040), a 40V max XGT® rapid optimum charger (DC40RA), and a dust extractor attachment with a HEPA filter cleaning mechanism (DX15).
Using the Makita GRH07M1W is easy. First, charge the 40V max XGT® 4.0Ah battery using the included rapid optimum charger. Once charged, insert the battery into the rotary hammer.
When you're ready to start working, select the appropriate mode ('Rotation Only', 'Hammering with Rotation', or 'Hammering Only') based on your task. Adjust the variable speed dial according to the application you're doing. If you're using the dust extractor, make sure it's properly connected. You can use the on - board HEPA dust extractor or a standalone one with the AWS® system. If using AWS®, pair the tool and the extractor via Bluetooth®.
For safety, always wear appropriate protective gear, like safety glasses, gloves, and ear protection. When the bit gets stuck, the torque - limiting clutch will disengage the gears to prevent damage. But try to avoid situations where the bit binds as much as possible.
After use, turn off the tool and remove the battery. Wipe down the tool to remove any dust or debris. Check the dust extractor and clean or replace the HEPA filter regularly, especially if you've been working in a very dusty environment. Keep the tool in a dry place to prevent water damage. If you're not going to use the tool for a long time, store the battery at around 50% charge to maintain its lifespan.
