Makita GRH05M1 40V max XGT Brushless 1-9/16-inch AVT Rotary Hammer Kit

Corded Power Without the Cord

The 40V max XGT Brushless 1-9/16in AVT Rotary Hammer Kit (GRH05M1) delivers unmatched cordless performance for heavy-load concrete drilling and demolition. Built to handle demanding applications typically reserved for corded tools, this rotary hammer offers the power, speed, and run-time needed on tough job sites—without the inconvenience of cords. It’s an ideal solution for contractors and professionals seeking a true cordless alternative without compromising performance.

Advanced Anti-Vibration and Safety Technology

For comfort during extended use, the GRH05M1 is equipped with Makita's exclusive Anti-Vibration Technology (AVT), an internal counterbalance system that reduces vibration at the source. Unlike basic padded grips, AVT uses opposing pistons to actively reduce the effects of vibration. Combined with a vibration-absorbing rear and side handle, this technology helps reduce operator fatigue. In addition, Active Feedback-Sensing Technology (AFT) increases safety by automatically shutting down the motor if the bit suddenly stops, minimizing injury and equipment damage.

Wireless Connectivity for Efficient Workflow

With Auto-Start Wireless System (AWS) integration, the GRH05M1 enables seamless Bluetooth communication between the tool and compatible dust extractors. Once connected, the extractor turns on or off automatically with the tool’s operation, reducing unnecessary noise and saving battery power. This level of smart integration increases job site efficiency and extends battery run-time, especially important in busy or confined workspaces.

Precision Performance and Enhanced Control

This rotary hammer is designed for optimal control under pressure. Features like constant speed control ensure consistent drilling by automatically boosting power under load, while a torque-limiting clutch prevents gear damage if the bit binds. Additional enhancements include a variable speed dial, soft-start for reduced start-up shock, and a soft no-load mode that slows the motor during idle to extend tool life. A built-in LED light with an independent switch brightens the workspace, enhancing visibility in dark or tight conditions.

Versatile and Trade-Ready

Offering two operating modes—Hammering with Rotation and Hammering Only—the GRH05M1 is ready to tackle various tasks across different trades. From mechanical and electrical contractors to utility workers and maintenance professionals, this SDS-MAX compatible rotary hammer meets a wide range of job site needs. The optional dust extraction kit (sold separately) further expands its capability for cleaner drilling operations.

The Power of the XGT Platform

Built on the 40V max XGT battery platform, this tool is part of a next-generation system engineered for high-demand applications. XGT tools feature advanced brushless motor technology, smart digital communication, and superior durability. The system’s digital interface actively manages power delivery, prevents overheating and over-discharge, and ensures consistent performance even under heavy load. Rugged battery construction with rigid rails provides secure attachment, while the rapid charger with dual-fan cooling reduces downtime by fully charging a 4.0Ah battery in 45 minutes or less.

Durability Backed by Warranty

Makita’s Extreme Protection Technology (XPT) offers enhanced resistance to dust and water, allowing the GRH05M1 to perform in harsh job site conditions. With electric braking, multi-finger trigger comfort, and a comprehensive 3-year limited warranty on the tool, battery, and charger, this rotary hammer is designed to outpower, outsmart, and outlast the competition.