The Makita GRH01M1W is a top - notch cordless solution for heavy - load concrete applications. Powered by 40V max XGT® technology, this brushless 1 - 1/8” AVT® rotary hammer kit packs a punch, offering the power, speed, and long run - time usually associated with corded tools, but without the hassle of cords. With a single 40V max XGT 4.0Ah Battery, it can drill up to 135 of 3/8” holes per charge. This rotary hammer features constant speed control, which adds extra power when under load for optimal performance. The Active Feedback - Sensing Technology (AFT®) shuts off the motor if the bit's rotation suddenly stops, enhancing safety. The Anti - Vibration Technology (AVT®) isn't just about a padded handle; it's an internal counterbalance system that uses air pressure to move counterweight pistons against the drive piston, greatly reducing vibration. The vibration - absorbing back and side handles further cut down on vibrations. Extreme Protection Technology (XPT™) makes it resistant to dust and water, perfect for harsh job sites. It has dust extraction capabilities. You can choose an OSHA Table 1 compliant on - board HEPA dust extractor attachment or a standalone Auto - Start Wireless System (AWS®). AWS uses Bluetooth® for wireless power - on and off communication between the tool and the dust extractor, boosting productivity and reducing noise. The torque - limiting clutch protects the gears by disengaging them if the bit binds, while the constant speed control maintains speed under load. Other features include an electric brake, variable speed dial, built - in L.E.D. light, and a retractable tool hook. Ideal for various trades like mechanical, electrical, plumbing, and concrete contractors, road and bridge workers, utility workers, pest control, and maintenance teams. It accepts SDS - PLUS bits. XGT is a comprehensive system of equipment, tools, batteries, and chargers using 40V max lithium - ion batteries. It's engineered for high - power, high - demand applications, enabling a complete transition to a cordless job site with advanced brushless motor engineering, intelligent digital communication, and superior durability.
Using the Makita GRH01M1W is easy. First, make sure the 40V max XGT 4.0Ah battery is fully charged and properly inserted into the tool. Select the right SDS - PLUS bit for your job. You can choose from three operation modes: 'Rotation Only', 'Hammering with Rotation', or 'Hammering Only'. Use the variable speed dial and trigger to adjust the speed according to the application. When starting the tool, the built - in L.E.D. light will illuminate the work area. If you're using the dust extraction feature, connect the on - board HEPA dust extractor or the AWS® extractor. When the tool starts or stops, the AWS - equipped dust extractor will automatically turn on or off. For safety, always wear appropriate personal protective equipment, like safety glasses and gloves. The Active Feedback - Sensing Technology (AFT®) will protect you if the bit's rotation suddenly stops, but still be careful. Don't overload the tool in high - torque situations. After use, clean the tool with the included cloth towel. Regularly check the tool for any signs of wear or damage, especially the gears and the bit. Keep the tool in the provided tool bag when not in use. If you need to lubricate the tool, use the included grease. Store the battery in a cool, dry place and charge it as needed.
