Oscillating Multi-Tool Fein MultiMaster MM 500 Selection — multi-tool kit by Fein, model MM 500

The Fein MultiMaster MM 500 Selection is an oscillating multi-tool kit designed for precise cutting, sanding, scraping and grinding tasks. Based on the MM 500 platform, this multi-tool provides variable-speed oscillation and an ergonomic grip for controlled work on wood, metal, plastic and finishing materials. The Selection kit includes a range of interchangeable accessory blades and sanding attachments to support renovation, trimming and detail work.

Advantages

The MM 500 Selection offers a compact design and adjustable speed control that allow users to match oscillation rate to the material and task. An ergonomic handle improves control during prolonged use, while the tool-free accessory change system speeds up blade and sanding element swaps. Compatibility with a wide range of oscillating accessories makes the kit versatile for cutting, plunge cuts, detail sanding, grout removal and scraping.

Suitable for

• Precision plunge cuts in wood and composite panels
• Trimming door jambs, laminates and flooring
• Detail sanding in tight corners and edges
• Removing grout, sealant and old adhesives
• Small metal cutting and deburring tasks with appropriate blades

When it may not be suitable

The oscillating multi-tool is intended for detail and repair work rather than heavy demolition. For large-scale demolition, sustained heavy-duty metal cutting, or continuous high-load industrial tasks, a dedicated saw or grinder with higher power and cooling capacity may be more appropriate. Very large or deep cuts that require long straight runs are better performed with specialized cutting saws.

Key specifications

• Tool type: oscillating multi-tool with variable speed
• Main functions: cutting, sanding, scraping, grinding
• Ergonomics: shaped grip for controlled handling
• Accessory system: quick-change compatible with oscillating blades and sanding pads
• Material compatibility: wood, soft metals, plastics, composites, finishing materials

How to use

Select the appropriate accessory for the task and securely mount it following the tool-free or clamp mechanism. Adjust the speed control to a lower setting for delicate materials and to a higher setting for harder or thicker materials. Hold the tool with a steady two-handed or single-handed grip depending on the cut, and guide the blade with light, even pressure—avoid forcing the tool. For sanding, attach the sanding pad and start with a coarser grit, then progress to finer grits as needed. Always secure workpieces and make test cuts or sanding passes on scrap material when precision is required.

What to consider before purchase

• Confirm included accessories meet your common tasks (blade types, sanding pads, adapters)
• Check the tool’s variable-speed range to suit materials you plan to work with
• Consider compatibility with additional oscillating accessories you may already own
• Assess whether the kit contains storage or a case for transport and organization

Usage recommendations

Wear appropriate personal protective equipment including eye protection, dust mask and hearing protection. Use the correct blade or sanding grit for each material, allow the tool to reach operating speed before engaging the workpiece, and frequently inspect accessories for wear. For precision results, stabilize the workpiece and make incremental passes rather than removing large amounts of material in a single pass.