The Makita GRH08M1 40V Max XGT Rotary Hammer Kit is a top - notch cordless solution for heavy - duty concrete work. This kit includes all you need: a powerful rotary hammer, a long - lasting 4.0Ah battery, a rapid charger, a side handle assembly, grease, a cloth towel, and a handy tool bag. With a Makita - built brushless motor paired with a 40V Max XGT battery, it packs a punch for high - load applications. Its constant speed control adds extra power under load, ensuring optimal performance. The overload protection safeguards the motor from burnout in high - torque situations. Using a fully charged 40V XGT 4.0Ah battery, it can drill up to 135 of 3/8 - inch holes. The Active Feedback - Sensing Technology (AFT) automatically shuts off the motor if the bit rotation stops suddenly, protecting you and the tool. The Anti - Vibration Technology (AVT) significantly reduces vibration, making it comfortable to use for long periods. It also has dust extraction options compliant with OSHA Table 1, either with an on - board HEPA Dust Extractor or a stand - alone AWS Extractor. The Auto - Start Wireless System (AWS) uses Bluetooth technology to control the dust extractor wirelessly, increasing productivity and reducing noise. Other great features include an electric brake for quick repositioning, a torque - limiting clutch to prevent gear damage, a variable speed dial and trigger for customized speed, a built - in LED light to illuminate the work area, an ergonomic soft - grip handle, and a retractable tool hook. It has three operation modes for various applications. The Extreme Protection Technology (XPT) enhances dust and water resistance, making it suitable for harsh job sites. The XGT system, with advanced digital communication, provides up to 2X longer power under heavy loads and protects against overload, over - discharge, and overheating. Compatible with Makita 40V Max XGT Lithium - Ion Batteries, it comes with a 3 - year limited warranty.
Using the Makita GRH08M1 Rotary Hammer is easy. First, make sure the battery is fully charged and properly inserted into the tool. Attach the SDS - PLUS bit according to your needs. Use the variable speed dial and trigger to set the appropriate speed for your job. For different tasks, select from the three operation modes: Rotation Only, Hammering with Rotation, or Hammering Only. If you're using the dust extraction feature, connect the AWS transmitter (sold separately) and the dust extractor. The tool will automatically turn the extractor on and off. When using the tool, always wear appropriate safety gear, such as goggles and gloves. Avoid using the tool in wet or extremely dusty conditions as much as possible. If the bit binds, the torque - limiting clutch will disengage the gears to prevent damage. After use, clean the tool with a dry cloth. Store the tool and battery in a cool, dry place. Charge the battery only with the genuine Makita charger provided, and follow the charger's instructions for best results. The tool, battery, and charger come with a 3 - year limited warranty, but always keep them in good condition to ensure long - term performance.
