Angle Grinder Makita DGA504RT3J

The Makita DGA504RT3J angle grinder is a cordless, battery-powered tool designed for grinding, cutting and surface preparation. It features a brushless motor that increases efficiency and runtime while reducing maintenance. With a 125 mm grinding disc diameter and a maximum no-load speed of 8,500 RPM, this compact grinder combines high performance with manageable weight and size. The tool is powered by an 18V lithium-ion battery, weighs approximately 2.5 kg and has compact dimensions (140 mm width, 145 mm height), making it suitable for use in confined spaces and on jobs that require a balance of power and portability.

Advantages

The brushless motor delivers improved energy conversion and longer runtime compared with brushed alternatives, while reducing the need for routine maintenance. The 125 mm disc diameter and high maximum speed allow efficient material removal and cutting performance for a variety of tasks. At about 2.5 kg and with compact dimensions the grinder is easier to handle during extended use and in tight spots. Battery operation provides portability and removes the need for a power cable, increasing flexibility on job sites.

Suitable for

• Metal grinding and cutting
• Masonry and concrete surface grinding preparations
• Rust and paint removal from metal surfaces
• On-site repairs and maintenance where mains power is unavailable
• Tight or confined working areas requiring a compact grinder

Key specifications

• Power source: 18V lithium-ion battery
• Motor type: Brushless
• Grinding disc diameter: 125 mm
• Maximum no-load speed: 8,500 RPM
• Weight: 2.5 kg (approx.)
• Dimensions: 140 mm (width) x 145 mm (height)
• Product colour: Blue, Black

How to use

Before use, ensure the correct 18V Makita battery is fully charged and correctly fitted according to the manufacturer's instructions. Fit a suitable 125 mm disc for the intended task and check that the disc is rated for the grinder's maximum speed. Hold the tool with both hands, maintain a firm grip and position yourself to control potential kickback. Start the grinder at a light load to bring the disc up to speed, then apply steady, even pressure while keeping the disc at the correct angle to the work surface. Allow the tool to do the work—avoid excessive force. After finishing, switch off the tool and allow the disc to stop completely before setting the grinder down or removing the battery.

Usage recommendations

Use protective equipment such as safety goggles, gloves and hearing protection when operating the angle grinder. Select discs appropriate for the material and ensure wheel guards are in place. For prolonged operations, monitor battery charge and allow periodic rest to avoid overheating; consult the battery and charger documentation for charge and storage guidance.