Oscillating Multitool Fein AMM 500 PLUS, 4.0 Ah battery, 11,000–20,000 RPM

Fein AMM 500 PLUS is an oscillating multitool powered by a 4.0 Ah battery and offering an oscillation frequency range of 11,000–20,000 RPM. The tool is designed for cutting, sanding, scraping and detail work across materials such as wood, metal, plastics and plaster. Variable speed control enables precise material removal and adaptation to different tasks, while cordless operation provides mobility for work in locations without mains power. Compact form and compatibility with a wide range of oscillating accessories make this multitool suitable for professional tradespeople and advanced DIY users.

Advantages

The cordless design with a 4.0 Ah battery delivers extended runtime and freedom from power outlets, while the high-speed oscillation range of 11,000–20,000 RPM supports both aggressive and fine material removal. Variable speed control allows accurate adjustment for cutting or sanding different materials. Compact construction and ergonomic handling reduce user fatigue during prolonged use. The multitool accepts common oscillating accessories, expanding its capabilities for cutting, scraping, sanding and precise trim work.

Suitable for

• Cutting wooden boards, panels and trims
• Sanding small surfaces and edges
• Removing old adhesives, grout and paint with scraper blades
• Detail trimming and plunge cuts in plasterboard and drywall
• Metal deburring and small profile cutting

Key specifications

• Power source: rechargeable battery (4.0 Ah)
• Oscillation frequency: 11,000–20,000 RPM (variable)
• Applications: cutting, sanding, scraping, detail work
• Compatible with standard oscillating multitool accessories
• Compact and ergonomic housing for handheld use

How to use

Fit the appropriate oscillating accessory for the job and secure it according to the tool’s accessory mounting system. Set the speed within the 11,000–20,000 RPM range to match the material and task; lower speeds are suitable for delicate finishes and precise plunge cuts, higher speeds for faster cutting and material removal. Hold the tool with a firm, controlled grip and guide it along the work surface, allowing the oscillation to perform the cutting or sanding without applying excessive pressure. Recharge the battery between extended sessions to maintain consistent performance.

Recommendations

Use blades and sanding attachments matched to the work material and replace worn accessories to maintain cutting quality. When working on metal or materials producing fine dust, use appropriate protective equipment and local extraction where possible. For clean plunge cuts in plasterboard or precise trim work, start at lower speeds and increase gradually if needed.