Full Review ⭐ Fein MultiMaster: AMM 500 AS Cordless Oscillating Multi-Tool Kit with QuickIN System - StarLockMax Mount, 18 V AMPShare, 4 Ah, Nylon Bag

The Fein MultiMaster AMM 500 AS is a cordless oscillating multi-tool that offers cordless convenience and versatility for DIYers and professionals alike. Part of Fein's MultiMaster line, it features the brand's signature Starlock blade mount for quick accessory changes. With its 18V lithium-ion battery, brushless motor and variable speed settings, this oscillating tool aims to deliver power and runtime similar to Fein's corded models.

The AMM 500 AS comes as a kit, providing everything needed to get started using this oscillating multi-tool. In the box is the tool itself, a 4Ah battery, 50-minute charger and a nylon accessory bag. Multiple accessories are also included for sanding, cutting, scraping and more. For tackling projects around the house or jobsite, the Fein MultiMaster AMM 500 AS offers a portable solution with the brand's proven performance.

Design and Features

The Fein MultiMaster AMM 500 AS Cordless Oscillating Multi-Tool comes with an ergonomic design and compact form factor that allows for easy handling and maneuverability. It weighs only 4.2 lbs with the battery which makes it easy to use for extended periods without hand fatigue.

The QuickIN system allows for quick and easy accessory changes with just one hand. There's no need for tools to change between saw blades, sanding pads, scrapers etc. Just insert and twist to lock accessories in place.

It is powered by a 500 watt motor which delivers sufficient power for most DIY and home improvement applications. Variable speed control allows adjusting the speed from 10,000 to 20,000 oscillations per minute to suit different materials and tasks.

The MultiMaster uses an 18V Lithium Ion battery which provides long run times between charges. The included 4Ah battery can deliver up to 66 minutes of cutting time. The battery also features Fein's AMPShare technology allowing it to be used with other AMPShare compatible tools.

The MultiMaster comes with StarLockMax mount which provides a sturdy and secure mounting for accessories to minimize vibrations. This results in more efficient material removal and cleaner cuts.

For those looking for a corded oscillating multi-tool, the Fein Multimaster Tool MM300 Plus Start 240V Multimaster Oscillating Multi Tool Set is an excellent option. This tool provides 240V of power for demanding applications and comes with 3 blades for cutting wood, metal, and plastic. The variable speed control allows matching the oscillations per minute to the material being cut. An ergonomic design provides comfortable handling during extended use.

The QuickIN system enables fast accessory changes without any tools required. Just twist to lock blades and attachments into place. The kit includes common accessories like a wood cutting blade, a scraper blade, and a detail sanding pad.

The MM300 operates with Fein's patented Starlock mounting system. This provides a secure and rigid attachment of accessories to improve cutting accuracy and control. The Starlock system reduces vibrations for smoother operation.

An adjustable pendulum stroke allows optimizing the oscillation angle from 1.4 to 2.4 degrees. Wider angles provide more aggressive cutting while narrower angles give more control for delicate materials. The variable speed ranges from 10,000 to 19,500 oscillations per minute.

Weighing 3.3 lbs, the MM300 is lightweight while still delivering 240 watts of power. Soft start slowly ramps up the speed to prevent jerky starts. The tool also has overload protection and an auto-stop carbon brush system to extend the motor life.

With its robust corded power and versatile accessory system, the Fein Multimaster MM300 is an excellent choice for home DIYers, woodworkers, carpenters, metal workers, and auto repair technicians. It can cut wood, plastic, metal, drywall, tiles and more. Change attachments to sand, scrape, polish, grind and more.

Fein oscillating multi-tools are German-engineered for durability, performance, and reliability. The MM300 comes with a 2-year warranty and 30-day money back guarantee. Overall, it provides professional power and versatility for the home workshop or jobsite.

Performance

The Fein MultiMaster AMM 500 AS is a highly capable oscillating multi-tool that performs extremely well across a wide range of materials and applications. The powerful 18V motor delivers up to 21,000 oscillations per minute, providing smooth and efficient cutting, sanding, and grinding.

When cutting, the MultiMaster slices through wood, metal, plastic, and even masonry with ease. The variable speed control lets you match the oscillation rate to the material for optimal performance. The unique Starlock blade changing system also allows ultra-fast accessory changes. For wood and plastic, the clean cuts minimize splintering and burrs. For metal, the MultiMaster cuts quickly through sheet metal, pipes, and profiles with minimal effort. Even tough materials like concrete, stone, and tile can be cut smoothly using the appropriate accessories.

For sanding applications, the MultiMaster accepts a wide range of sanding pads and sheets. The rapid oscillating action allows quick stock removal and smoothing of surfaces. On wood, it sands smoothly without leaving swirl marks. For auto body work, the MultiMaster efficiently sands filler and removes paint. The triangular sanding pads also let you sand in tight spaces and corners.

The grinding performance is equally impressive. With grinding and rasping attachments, the MultiMaster efficiently removes grout, smoothes welds, and sharpens tools. The variable speed control allows matching the oscillations to the grit of the accessory to optimize grinding speed.

Overall, the cutting, sanding, and grinding versatility of the Fein MultiMaster AMM 500 AS makes it highly effective across virtually any application you throw at it. The power and precision truly set it apart from competitors.

For those looking for even more power and versatility, Fein's AMPShare 18V Cordless AMM 700 MAX AS TOP represents the pinnacle of oscillating multi-tool technology. With an upgraded 18V brushless motor, the AMM 700 MAX AS TOP delivers up to 26,000 oscillations per minute while increasing run time per battery charge. The QuickIN interface allows ultra-fast accessory changes in just 3 seconds without any tools. An innovative LED worklight illuminates the work area for improved visibility. With over 60 included accessories stored in a sturdy case, the AMM 700 MAX AS TOP is the ultimate oscillating multi-tool for both professionals and DIYers looking for maximum versatility and power.

In addition to cutting, sanding, and grinding, the AMM 700 MAX AS TOP can also saw wood and metal with dedicated saw blades. An offset angle head provides improved access in tight areas. And the variable speed dial allows matching the oscillations to the job. From fine detail work to aggressive stock removal, the AMM 700 MAX AS TOP handles it all.

So whether you need an affordable oscillating multi-tool like the AMM 500 AS or want to step up to the best-in-class AMM 700 MAX AS TOP, Fein delivers outstanding performance and versatility. With decades of experience pioneering oscillating technology, Fein continues to innovate and set the standard for power multi-tools.

Battery Life

The Fein MultiMaster AMM 500 AS comes with a powerful 4 Ah lithium-ion battery that delivers impressive runtime. With a full charge, users can expect around 60-80 minutes of continuous runtime depending on the application. This is more than enough for most DIY and home improvement tasks.

The battery uses Fein's 18V AMPShare system which is compatible with all their 18V cordless tools. It's easy to swap between tools without needing multiple chargers. Recharging the battery from empty takes about 60 minutes to fully charge again. An LED indicator lets you check the remaining battery level at a glance.

Overall, the battery capacity and runtime is very good for an oscillating multi-tool. The quick recharging and AMPShare system also make it convenient to keep the MultiMaster powered up.

Accessories

The Fein MultiMaster AMM 500 AS comes with a few handy accessories to get you started. In the box, you'll find:

• 1 x AMPShare 18V 4.0Ah Li-ion battery
• 1 x AMPShare 18V rapid charger
• 1 x QuickIN oscillating head
• 1 x QuickIN universal E-cut saw blade
• 1 x QuickIN sanding pad
• 1 x QuickIN triangular sanding pad
• 1 x QuickIN felt polishing pad
• 1 x nylon bag

This gives you everything you need for cutting, sanding, and polishing right out of the box. The QuickIN system allows you to change accessories and blades quickly without any tools.

Additional accessories are available to further expand the capabilities of the MultiMaster. Some popular add-ons include:

• Grout removal blade
• Carbide rasps
• Circle cutter attachment
• Right angle attachment
• Detail sanding pads
• And many more specialized blades and attachments

One of the best things about the Fein MultiMaster is the wide range of compatible accessories available. With the right attachments, you can use this tool for virtually any cutting, sanding, or grinding task. The QuickIN system makes it easy to customize your MultiMaster to suit the needs of each project.

Ease of Use

The Fein MultiMaster AMM 500 AS is designed to be comfortable and easy to control during use. The grip and handling make it feel balanced in your hands despite the weight of the battery. The tool has an ergonomic shape and rubberized softgrip zones that allow you to grip it securely.

The variable speed dial gives you precision control over the oscillations per minute (OPM), allowing you to match the speed to the material and application. At lower speeds, the MultiMaster produces smooth, clean cuts in wood and metal. At higher speeds, it can sand and grind aggressively. The speed can be adjusted with one hand while operating the tool.

The StarlockMax mount allows you to quickly change accessories without any tools required. Just insert the accessory and twist to lock it in place. This makes it fast and simple to switch between cutting blades, sanding pads, and scraping knives as needed.

Overall, the Fein MultiMaster feels balanced and under control during operation. The soft grip zones, variable speed dial, and quick accessory changes result in a comfortable user experience suitable for extended use. The ease of handling this versatile tool enables you to take on many different applications.

Pros

The Fein MultiMaster AMM 500 AS cordless oscillating multi-tool stands out with several excellent features that make it a great choice for DIYers and professionals.

• Powerful motor. The 500 watt motor provides plenty of power for cutting, sanding, and grinding applications. It can handle tough materials without bogging down.

• Variable speed dial. The speed is adjustable from 11,000 to 19,500 oscillations per minute, giving you flexibility and control over the tool. Slow speeds work well for precision tasks.

• QuickIN system. This allows for fast and easy accessory changes without any tools required. The StarLockMax mount is very secure.

• Ergonomic grip. The rubberized soft grip makes the MultiMaster comfortable to hold, even when working for extended periods. The grip rotates for optimal control.

• Brushless motor. This motor design is efficient, durable, and provides constant power. It has a long lifespan with minimal maintenance required.

• 18V battery. The 4Ah lithium-ion battery has plenty of runtime for most applications and recharges quickly. Runtime can exceed over 1 hour per charge.

• LED light. The built-in LED light illuminates the work area for improved visibility and accuracy.

• Accessories included. The kit includes useful accessories like sanding pads, saw blades, and an edge guide for straight cuts.

• Carrying bag. The included nylon bag provides safe storage and portability for the tool and accessories.

Cons

• The tool can feel heavy and bulky, especially when using it overhead or in tight spaces. The weight is a tradeoff for the power and durability.

• Battery life could be better. Expect around 20-30 minutes of runtime when using a high speed setting. Extra batteries add cost.

• There's some vibration, which can cause numbness in hands after prolonged use. Wearing gloves helps reduce vibration.

• The kit only includes a limited number of accessories. You may need to buy additional attachments for specialized cuts, adding to the overall cost.

• It's an investment - this is among the more expensive oscillating multi-tools. Just the bare tool costs over £200.

• The nylon bag included doesn't offer much protection. Plan on getting a hard case if you'll transport it often.

• Dust collection could be improved. It can blow debris around. A vacuum helps contain mess.

• At higher speeds, blade changes generate heat that can burn fingers if you're not careful.

Let me know if you would like me to expand or modify the cons section.

Alternatives

When comparing the Fein MultiMaster to other oscillating tools on the market, here are some top options to consider:

DeWalt DCS355D1 - This cordless oscillating tool from DeWalt offers similar power and performance to the Fein. It has a brushless motor and comes with a 20V MAX lithium ion battery. The interchangeable head system allows quick accessory changes. While not quite as versatile as the Fein, it's a more budget-friendly alternative.

Milwaukee 2426-20 M12 - For a compact and lightweight oscillating multi-tool, the Milwaukee M12 is a great choice. It has variable speed from 12,000 to 18,000 OPM to match the application. The LED light illuminates the work area. While the smaller 12V battery limits extended runtime, it's ideal for tight spaces.

Rockwell RK5132K Sonicrafter - With a universal fit system, this oscillating tool works with accessories from other brands. The hyper lock tool free blade change is convenient for swapping accessories. Vibration control helps reduce fatigue. Lacks some of the finesse of the Fein but costs significantly less.

Makita TM3010CX1 - Makita's oscillating multi-tool offers a powerful motor with variable speed control from 10,000 to 20,000 OPM. The tool-less blade change system allows fast accessory swaps. It comes with an 18V LXT lithium-ion battery. While not quite as refined for detail work, it matches the Fein for power.

Bosch GOP40-30C StarlockPlus - The Starlock blade change system on this Bosch model allows accessories to be changed in seconds without any tools. It has a powerful brushless motor and comes with a slim battery for accessing tight spaces. Provides similar performance to the Fein at a more affordable price point.

Conclusion

The Fein MultiMaster AMM 500 AS is an excellent cordless oscillating multi-tool that lives up to Fein's reputation for high-quality power tools. Its QuickIN mounting system makes accessory changes fast and easy, while the StarLockMax interface ensures accessories stay firmly locked in place during operation.

The MultiMaster delivers impressive cutting, sanding, and scraping performance thanks to its powerful 18V motor and oscillating action. It makes short work of jobs involving tight spaces, complex contours, and precision detail work. The variable speed dial gives you control over the oscillation rate to match the demands of the application.

Battery life is ample for most applications, giving you the freedom to work without cords. The inclusion of two 4Ah batteries is a nice bonus. The charger conveniently tops up both packs at the same time.

In terms of downsides, the MultiMaster is relatively heavy compared to some competitors. The price is also on the high side, but you get what you pay for in terms of German engineering and build quality.

Overall, the Fein AMM 500 AS is an excellent choice for professionals, serious DIYers, and anyone who needs maximum versatility for oscillating and detail work. It's built to last and delivers top-notch performance across a wide range of applications. If you can afford the investment, it's highly recommended.