FEIN FMM350QSL MultiMaster QuickStart StarlockPlus Snap-Fit Oscillating Multi-Tool

Last updated date: June 1, 2020

DWYM Score

8.8

FEIN FMM350QSL MultiMaster QuickStart StarlockPlus Snap-Fit Oscillating Multi-Tool

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We looked at the top Oscillating Multi-Tools and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Oscillating Multi-Tool you should buy.

Editor's Note June 24, 2020:
Checkout The Best Oscillating Multi-Tool for a detailed review of all the top oscillating multi-tools.

Overall Take


In our analysis of 14 expert reviews, the FEIN FEIN FMM350QSL MultiMaster QuickStart StarlockPlus Snap-Fit Oscillating Multi-Tool placed 8th when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

In 1967 FEIN brought a revolutionary idea to the market, introducing the first oscillating tool. Through the years Fein has constantly made improvements and innovated new features. In a world of oscillating multi-tools, the FEIN MultiMaster 350QSL is in a class all its own. The combination of a 350 Watt motor with high copper content and an independent tool housing makes the FEIN MultiMaster 350QSL more powerful, lower in vibration and quieter than every other comparable tool on the market. Weighing under four pounds, the MultiMaster is lightweight and well balanced with a soft grip for comfortable handling. The tacho generator and electronic speed control ensures constant speeds while operating under load. The MultiMaster features a soft start with a balanced armature and ball bearings to deliver flawless operation. The sixteen foot industrial-quality power cable allows access to a large working radius with optimum handling. Utilizing four flexible damping elements, the MultiMaster housing is completely independent from the motor. The design reduces vibrations by up to 70 percent and noise up to 50 percent when compared to the previous model. Although developed to withstand the toughest demands of professional use in trade and industry, the FEIN MultiMaster 350QSL also makes day-to-day work more efficient, safe and easy. With superb features the FMM 350QQSL is the choice oscillating multi-tool of do-it-yourselfers and professionals alike. FEIN has now made the best even better by incorporating the Star Lock mounting system in the FMM 350QSL. The FEIN MultiMaster 350QSL is known for its abundance of power, minimal noise and vibration and wide range of applications. With the added improvement of the Star Lock mounting system the FEIN MultiMaster 350QSL can operate with less noise and vibration, faster work progress and improved precision even with larger blades and accessories. The FEIN Star Lock mounting system is a pin-less, tool-free quick change system. It allows the effortless change of accessories in less than three seconds. The unique geometry of the tool head in combination with Star Lock accessories guarantees a solid connection and the transfer of power to the work piece. The accessories simply snap into the tool head for a secure and accurately seated connection. The accessories are also easily released by lifting the lever on the tool head. With a wide range of accessories specially designed for specific applications, the Fein MultiMaster saves a great deal of time and effort in all operations. The FEIN FMM 350QSL Q-START kit offers the powerful FMM 350QSL MulitMaster in premium plastic case with a Universal 152 blade, a Long-Life 161 blade, a 234 scraper blade, a segmented 106 blade, an unperforated triangle sanding pad and three sheets of each 60, 80, 120 and 180 grit triangle sandpaper. The FEIN FMM 350QSL Q-START kit is the perfect choice for everyone from the professional contractor already using FEIN accessories to the first time multi-tool user who wants the most powerful and reliable tool on the market. FEIN originated the oscillating tool and is proud to offer innovative and durable tools and accessories that achieve ultimate performance

Expert Reviews

Expert Summarized Score

8.8
2 expert reviews

User Summarized Score

8.8
123 user reviews

What experts liked

When it comes down to simple preference, the MultiMaster is my favorite of all 25 models we tested and earns the starting role in my arsenal. It’s the overall design and ergonomics that I’m willing to trade-off some cutting speed to take advantage of. Unless you need the higher performance of the SuperCut, the MultiMaster get my highest recommendation.
- Pro Tool Reviews
Premium, high-quality construction. Weighing in at less than four pounds, the MultiMaster 350QSL can be used for long periods without putting any strain on the back or arms. This lightweight design, combined with an ergonomic handle and reduced vibration, makes for heightened control of the device.
- Woodworkology

What experts didn't like

The MultiMaster comes in under 100 decibels with a 98 dB(A) measurement. That’s quite a bit higher than the 92 dB(A) of Milwaukee’s cordless model
- Pro Tool Reviews
Very expensive.
- Woodworkology

An Overview On Oscillating Multi-Tools

Walk into any hardware store and you’re likely to see aisles full of specialized tools for all manner of home improvement jobs. There are sanders, grout removal tools, vinyl strippers and electric blades of various sizes and shapes depending on what they’re meant to be cutting. Wouldn’t it be nice if there was one tool that could handle all of these jobs?

Savvy handymen know that there already is. It’s called the oscillating multi-tool, and although it’s only been a staple in the contractor’s tool chest for the past decade or so, many home repair specialists now wouldn’t dream of tackling a job without one.

So what does it do? As the “multi-tool” name implies, there isn’t much it can’t do. The basic design of this handheld device incorporates a motor that can move a blade (or any one of several accessories) in a rapid side-to-side motion. That motion is known as oscillation, and it’s well suited to portable cutting devices. Unlike circular saws and other comparable tools, oscillating cutters tend to “grab” less and are easier to handle for detail jobs.

As with any interchangeable bladed tool, a secure fit is key. Many older tools might require an allen wrench or some proprietary accessory in order to remove the old blade and sub in a new one. Newer models typically have some lever system such as Bosch’s Starlock that allows users to change accessories on the fly without unscrewing.

As with any power tool, the big attraction for most buyers is going to be the power. A good general measure of that power is the motor’s maximum oscillations per minute, typically abbreviated as OPM. Any decent multi-tool should have that number listed prominently, but it’s hardly the only measure of quality. If you’re doing light-duty jobs like drywall cutting or sanding, you might not even need all that much torque. In that case, you might look for a multi-tool with variable settings that be adjusted down. Less OPM might not cut through masonry so well, but it will make your tool easier to handle for detail work.

The next big factor is portability. If you need to tackle jobs in multiple areas of the house on the same day, you might want to invest in a cordless multi-tool. The battery will need to be recharged periodically, but there have been great strides in lithium-ion battery technology in the last few years. You can expect plenty of use out of a charge on most mid-range or better tools.

Corded multi-tools, of course, will only have a range as long as their cord. That’s fine as long you’re working indoors, or in reasonable range of an outlet — but you will want to be wary of cutting through your own cord or other mishaps in messy work areas. That said, corded multi-tools are generally able to squeeze a bit more power out of their motors. The results may vary, and might be negligible if you’re not doing consistently heavy work. Still, every little bit counts.

Most multi-tools will come in a kit with an array of fittings and blades suited to a variety of jobs. There are blades for grout removal, drywall, concrete and more plus various sizes of sanding pads, to name just a few. You may not need all of them, so pick the kit that suits your work the best. Still, if you’re just starting out in home repair you might want to grab a larger bundle. After all, why have a multi-tool if you’re going to limit its uses?

The Oscillating Multi-Tool Buying Guide

Buying new accessories for your multi-tool is fairly easy, and can even be fun. Still, check your manufacturer’s guide for details. Many multi-tools have adapters that will allow them to use blades and pads from other brands. Others are somewhat more proprietary with their gear. Whatever you do, make sure the fit is secure no matter what head you use. Operating a tool with a loose blade can result in harm to the blade, the tool — and possibly the user.