Angle grinder Makita GA051GZ 40V XGT Brushless motor, cordless power tool

The Makita GA051GZ 40V XGT brushless angle grinder is a cordless power tool engineered for cutting, grinding and surface preparation across construction, metalworking and renovation environments. Built on Makita's 40V XGT platform and powered by a brushless motor, the tool provides high torque and efficient energy use to extend runtime and maintain consistent performance during demanding tasks. The cordless design removes the need for power cords on job sites, while compatibility with the XGT battery ecosystem supports rapid battery changes and sustained workflow.

Advantages

The brushless motor delivers improved efficiency and reduced maintenance compared with brushed designs, resulting in longer runtime per battery charge and more consistent power under load. The 40V XGT platform offers higher voltage capacity for tougher applications and better heat management. Cordless mobility increases job site flexibility and safety by eliminating cords, and the tool's construction balances durability with manageable weight for extended handheld use. Variable speed control and electronic protection systems help preserve tool and battery life during heavy-duty operation.

Suitable for

• Cutting metal pipes, rebar and sheet metal
• Grinding welds and removing rust or paint
• Surface preparation on concrete and masonry
• On-site renovation and remodeling tasks

Key specifications

• Power system: cord-free, battery-powered 40V XGT platform
• Drive: brushless motor for higher efficiency and longer service life
• Disc size compatibility: common angle grinder disc diameters suitable for 40–125 mm discs (refer to user manual for approved sizes)
• Variable speed control for matching RPM to material and accessory
• Electronic protection features for motor and battery overload prevention
• Ergonomic design with side handle mounting options for improved control

How to use

Fit a compatible grinding or cutting disc following the manufacturer instructions and ensure the battery is fully charged and correctly seated. Select the appropriate speed setting for the material and accessory, secure the workpiece, and hold the angle grinder with both hands using the main and side handles. Start the tool and allow it to reach operating speed before engaging the surface; apply steady, controlled pressure without forcing the disc. After use, power off, allow the disc to stop completely, remove the battery for storage or charging, and inspect the disc and guard for wear or damage.

Usage recommendations

Use compatible 40V XGT batteries and genuine accessories designed for the specified disc diameters. Always wear appropriate personal protective equipment including eye protection, hearing protection, and gloves. Maintain proper guard installation and follow ventilation and dust-control practices when working with concrete or coated surfaces. Consult the user manual for specific accessory limits, speed settings and maintenance intervals to ensure safe and long-lasting operation.