Angle Grinder Makita GA5040RZ1

The Makita GA5040RZ1 angle grinder is a compact 125 mm (12.5 cm) grinding and cutting tool designed for general purpose metalworking, masonry and surface preparation. It is powered by an 1100 W motor that delivers an idle speed of 11,000 RPM, offering a balance of power and control for both professional tradespeople and DIY users. The tool's slim body and 2.4 kg weight make it easier to handle in confined spaces, while the M14 spindle thread accepts a wide range of standard abrasive and cutting accessories. The unit is supplied in a black and blue finish and built to fit common workshop tasks where precision and maneuverability are important.

Advantages

The GA5040RZ1 combines a high-revving 1100 W motor with a compact form factor, providing efficient material removal and cutting performance without excessive bulk. Its 125 mm disc diameter enables effective grinding and cutting on a variety of materials while keeping the tool lightweight at 2.4 kg for reduced operator fatigue. The M14 spindle thread ensures broad accessory compatibility, and the compact dimensions (approximately 140 mm width and 116 mm height) allow use in restricted areas where larger grinders would be impractical.

Suitable for

• Grinding and finishing metal surfaces
• Cutting metal pipes, rebar and sheet metal
• Masonry grinding and removal of mortar or plaster
• Surface preparation prior to welding or painting
• DIY renovation and light fabrication work

Key specifications

• Disc diameter: 125 mm (12.5 cm)
• Motor power: 1100 W
• No-load speed: 11,000 RPM
• Spindle thread: M14
• Weight: 2.4 kg
• Approximate width: 140 mm
• Approximate height: 116 mm
• Housing colours: black and blue

How to use

Before use, fit a suitable 125 mm disc compatible with the M14 spindle thread and ensure the disc is rated for the intended material and RPM. Secure the disc with the correct flange and tighten according to the manufacturer's torque recommendations. Hold the grinder with both hands using the main handle and, if available, the auxiliary side handle for improved control. Start the tool and allow it to reach full speed before applying it to the workpiece; use steady, even pressure and avoid forcing the disc. Keep the workpiece secured and maintain proper personal protective equipment including eye, ear and respiratory protection. After completing the task, switch off the grinder and allow the disc to stop completely before setting it down.

Usage recommendations

Use discs specifically rated for 11,000 RPM and appropriate for the material you are working on. For best results in tight spaces, use the auxiliary handle position that offers the most comfortable grip. Regularly inspect the power cable, housing and disc for damage and replace worn or damaged accessories to maintain safe operation.