Intro
Every renovation, repair, or detailed craft project eventually reaches a moment where a standard saw, sander, or grinder simply cannot reach the spot that needs work. Cutting a door frame flush with the floor, removing old grout from between tiles, sanding into a tight corner, or slicing through a pipe in a confined space — these tasks demand a tool that can oscillate rapidly in a small arc rather than spin or reciprocate. An oscillating multi-tool fills this gap like nothing else in the toolbox. Its ability to accept dozens of different accessories — saw blades, sanding pads, scrapers, rasp attachments, and more — turns one compact machine into a problem-solver for jobs that would otherwise require awkward hand work, specialist tools, or a lot of creative swearing. For tradespeople who value precision and for serious DIYers who hate being stuck mid-project, a high-quality oscillating tool is one of those purchases you wonder how you ever managed without.
Generalities
Before buying an oscillating multi-tool, there are a few things worth thinking about. Power output is important — a stronger motor maintains speed under load, which matters when cutting through hardwood, metal, or thick materials. The tool holder system also makes a big difference to your experience: Starlock, StarlockPlus, and StarlockMax are the modern standards that give you tool-free blade changes and a secure, wobble-free connection, while older pin-style or clamp systems are slower to use and less rigid. Vibration is a real factor in comfort — cheaper oscillating tools can leave your hands numb after extended use, so anti-vibration engineering is worth paying for. Fein is the company that invented the oscillating tool category, and their Multimaster range has been the benchmark for decades. If you are looking at a Fein, you are looking at the original — but the question is whether the latest model still earns its reputation and its premium price tag.
In this review, we examine the Fein Multimaster MM 500 Plus Top — a 350 W corded oscillating multi-tool that uses the StarlockPlus tool holder and comes with a comprehensive 32-piece accessory kit. We cover the motor performance, the anti-vibration system, the tool-free accessory change mechanism, build quality, and the range of tasks this machine can tackle. We also break down the honest pros and cons to help you decide whether this premium tool justifies its price for your specific needs.
Description
At the heart of the Fein Multimaster MM 500 Plus Top sits a 350 W Fein-designed motor that delivers variable speed control from 10,000 to 19,500 RPM. The motor is engineered in-house by Fein, a German manufacturer with over 150 years of power tool experience — this is not a rebadged generic unit. The tool runs on 230 V corded electric power, which means no battery to run flat mid-cut and consistent power delivery throughout long jobs. The StarlockPlus tool holder represents the mid-tier of the Starlock system: it accepts both standard Starlock and StarlockPlus accessories, giving you access to a wide ecosystem of blades, sanding pads, and scrapers from Fein and third-party manufacturers. The kit ships with a 32-piece accessory set, including the bi-metal saw blade for wood, metal, and plastic that is highlighted in the product description.
The standout design feature is Fein's anti-vibration system. Oscillating tools work by vibrating a blade or pad back and forth at high frequency, and cheap models transmit much of that vibration directly into the user's hands. The MM 500 Plus Top decouples the motor housing from the grip using a dampening system that significantly reduces felt vibration. The result is less hand fatigue during extended use and more precise control — you can guide the tool more accurately when it is not buzzing your fingers numb. The StarlockPlus mechanism is fully tool-free: you flip a lever, the blade ejects, you snap in the new accessory, and you are back to work in seconds. The compact body design lets you get the tool into tight spaces where bulkier oscillating tools would not fit.
In everyday use, the MM 500 Plus Top feels like a premium instrument. The variable speed dial gives you fine control — lower speeds for sanding and delicate scraping, higher speeds for aggressive cutting through hardwood and metal. The motor holds its speed well under load, which is where cheaper oscillating tools often bog down and stall. The StarlockPlus connection is rigid and wobble-free, meaning all the motor's energy goes into the cutting edge rather than shaking the blade around in the holder. The tool balances well in the hand, and the soft-grip areas are positioned thoughtfully. At around 1.4 kg, it is light enough for overhead work and one-handed operation, yet substantial enough to feel planted during heavy cutting. The 4-metre power cable gives you decent reach around a workshop or job site without immediately hunting for an extension lead.
The 32-piece accessory kit packaged with the MM 500 Plus Top covers a broad range of applications right out of the box. Alongside the bi-metal saw blade for wood, metal, and plastic, you get sanding pads in multiple grits, scraping blades for removing adhesives and paint, a triangular sanding plate for corners, and specialised cutting blades for different materials. The tool comes in a sturdy carrying case that keeps everything organised — important when you have 32 small accessories that could easily get lost in a tool bag. StarlockPlus is backwards-compatible with standard Starlock accessories, so your existing blade collection remains usable. Fein also guarantees spare part availability for at least one year, which covers things like replacement carbon brushes, sanding pads, and the Starlock mechanism should it ever need service.
The MM 500 Plus Top measures a compact footprint and weighs approximately 1.4 kg, making it one of the lighter professional-grade oscillating tools on the market. It carries a manufacturer warranty from Fein, and customer satisfaction is exceptionally high — a 4.9 out of 5 stars rating from 25 reviews on Amazon, ranking as #7 in Oscillating Tools and #17,571 in DIY & Tools overall. Priced at €249.72, the MM 500 Plus Top sits firmly in the premium bracket for oscillating tools. Whether that represents good value depends on how much you use an oscillating tool and how much you value comfort and precision — for daily professional use, the anti-vibration system and build quality alone can justify the investment.
Pros and cons
Pros
- Anti-vibration system genuinely reduces hand fatigue — you can work for longer periods with better control and less numbness, a real advantage over budget oscillating tools.
- StarlockPlus tool holder provides tool-free blade changes in seconds and a rigid, wobble-free connection that directs all motor power into the cutting edge.
- 350 W Fein-designed motor delivers consistent power under load — the tool does not bog down when cutting through hardwood, metal, or thick plastic.
- Variable speed from 10,000 to 19,500 RPM gives precise control — dial it down for sanding and scraping, crank it up for fast cutting.
- Comprehensive 32-piece accessory kit covers cutting, sanding, scraping, and grinding right out of the box — you can tackle most common tasks without buying extra blades.
- Compact body design and 1.4 kg weight make it easy to manoeuvre in tight spaces and comfortable for overhead or one-handed operation.
- 4.9 out of 5 stars from 25 reviews with a #7 bestseller rank in Oscillating Tools — owner satisfaction is near-universal for this model.
- Fein heritage — the company literally invented the oscillating multi-tool, and decades of refinement show in the fit, finish, and engineering of the MM 500.
Cons
- At €249.72, the price is firmly premium — budget-conscious DIYers can find oscillating tools with similar paper specs for half the cost or less.
- Corded-only design means you need mains power — there is no battery option in this model, which limits portability on job sites without accessible outlets.
- StarlockPlus accessories, while widely available, cost more than older universal-fit blades — ongoing consumable costs are higher than with pin-style or clamp-style systems.
- Spare part availability is guaranteed for only one year — for a tool at this price point, a longer commitment to parts would be reassuring for long-term owners.
- The 32-piece kit, while generous, includes some accessories that heavy users will wear through quickly — you will need to budget for replacement sanding sheets and blades sooner than you might expect.
Use cases
The Fein Multimaster MM 500 Plus Top is built for professional tradespeople, serious renovators, and demanding DIYers who need a versatile oscillating tool that delivers precision, comfort, and durability across a wide range of cutting, sanding, and scraping tasks.
Flush Cutting Door Frames and Skirting Boards
When laying new flooring, you need to undercut door frames and architraves so the flooring slides neatly underneath. The MM 500 Plus Top's compact head and precise blade control let you make flush cuts right at floor level without damaging surrounding surfaces. The bi-metal blade cuts through wood, nails, and even the occasional screw with ease, and the anti-vibration system keeps your hand steady for a clean, professional finish.
Removing Old Grout and Damaged Tiles
Bathroom and kitchen renovations often involve removing failing grout or extracting individual cracked tiles without damaging neighbouring ones. The Fein's variable speed control lets you work carefully at lower RPM for grout removal, and the carbide rasp or grout blade attachments make quick work of hardened material in narrow joints. The vibration dampening means your hands do not pay the price after an hour of detailed grout work.
Detail Sanding in Corners and Awkward Spaces
Standard orbital sanders cannot reach into corners, along edges, or inside recesses. The triangular sanding pad on the Multimaster gets into tight angles, and the oscillating motion leaves a smooth, swirl-free finish. Whether you are refinishing furniture, preparing window frames for paint, or smoothing filler on drywall joints, the dust extraction port keeps the work area cleaner when connected to a vacuum.
Cutting Pipes, Bolts, and Metal in Confined Spaces
Plumbers and metalworkers regularly face situations where a hacksaw or angle grinder is too large or too aggressive. The MM 500 Plus Top's bi-metal blade slices through copper pipe, galvanised conduit, and small bolts cleanly and with minimal sparks. The tool's slim profile fits between joists, inside cabinets, and behind fixtures where alternatives simply cannot go.
Scraping Old Adhesives, Paint, and Carpet Residue
Removing stubborn glue, decades-old paint layers, or carpet underlay residue from concrete floors is a tedious job with a hand scraper. Fit the rigid scraper blade to the Multimaster, set a moderate speed, and the oscillating action does the hard work for you. The anti-vibration system is particularly appreciated here — scraping is one of the most vibration-heavy applications, and the Fein keeps it tolerable even during extended floor preparation work.