Angle Grinder Makita DGA515RTJ

The Makita DGA515RTJ angle grinder is a battery-powered cutting and grinding tool with a brushless motor designed for professional and DIY tasks. It accepts a 125 mm (12.5 cm) grinding disc and delivers a no-load speed up to 8,500 RPM, allowing for efficient metal and masonry work. The tool operates from an 18 V Lithium‑Ion battery and features a compact housing (approximately 140 mm wide, 145 mm high, 382 mm deep) that improves handling in confined spaces. An integrated overload protection system helps prevent motor damage during heavy-duty use.

Advantages

The brushless motor increases energy efficiency and reduces maintenance compared with brushed designs, extending run time per battery charge. The combination of 125 mm disc size and 8,500 RPM permits effective cutting depth up to around 29 mm, suitable for many common grinding and cutting applications. Lightweight and compact dimensions improve user control and reduce fatigue during extended tasks. Overload protection adds a safety layer by limiting current draw under excessive load.

Suitable for

• Cutting and grinding metal components on-site
• Masonry cutting and shaping with appropriate discs
• Surface preparation and rust removal
• Workshop and construction tasks where cordless portability is needed

Key specifications

• Motor type: brushless (BL)
• Power source: 18 V Lithium‑Ion battery (battery not included unless stated)
• Disc diameter: 125 mm (12.5 cm)
• Maximum no-load speed: 8,500 RPM
• Maximum cutting/grinding depth: up to 29 mm
• Approximate dimensions (W×H×D): 140 × 145 × 382 mm
• Colour: Blue, Black
• Built-in overload protection

How to use

Fit a suitable 125 mm disc for the task and ensure the disc type matches the material being worked on. Install a charged 18 V Lithium‑Ion battery according to the manufacturer’s instructions and check that the guard and handle are correctly positioned. Start the grinder and allow it to reach full speed before contacting the work surface. Use steady, controlled movements and avoid applying excessive pressure; let the disc do the cutting or grinding. After use, switch the tool off and wait for the disc to stop completely before setting it down or removing the battery.

Usage recommendations

Use appropriate personal protective equipment such as eye protection, gloves, and hearing protection. Select the correct disc type and maximum RPM rating for the chosen accessory. For extended jobs, rotate batteries or use spare charged packs to maintain consistent performance. Regularly inspect discs, guards, and the tool for wear or damage and replace parts as needed to maintain safe operation.