Buy the Dremel MM50-01 if you own no cordless platform, and the DEWALT DCS354B if you own 20V MAX batteries. Then spend the money you saved on blades, because the blades are the tool. The Fein MultiMaster MM 500 Start is the one to buy if you will use it weekly and the Milwaukee 2526-20 is the one you can run one-handed. The WEN MT3537 is the right answer if the truthful number of jobs per year is two.
The honest gate: you probably do not need one
Nearly every job a multi-tool does, some other tool in a woodworking shop does better. A jigsaw cuts a curve faster. A random orbital sander sands flatter. A chisel pares a mortise cleaner. If you are choosing between a multi-tool and any of those as a first purchase, buy the other one.
What a multi-tool owns is a specific and narrow set of cuts, defined by a single property: the blade vibrates through a tiny arc instead of spinning, so it cuts only what it is pressed against and stops at anything it is not. There are four jobs in a woodworking shop where that is the only thing that works.
Flush-cutting something already attached. A dowel or a plug standing proud of an assembled carcase, a tenon horn, a protruding shim behind a fitted cabinet. A flush-cut saw does this beautifully when there is room for one; a multi-tool does it when there is not.
Cutting into the middle of a surface. A hinge mortise in a hung door, a notch in an installed shelf, an opening in a fitted panel. There is no way to start a circular blade in the middle of a surface without plunging it, and a jigsaw needs a hole drilled first.
Sanding and scraping into an inside corner. A delta pad reaches the actual apex of a corner, which no round pad can. On a glued-up frame, in the rebate of a window sash, or against the inside of a carcase, that is the difference between hand sanding and thirty seconds.
Cutting next to something you must not cut. Trimming a scribe against a plastered wall, cutting a fixing out of a repair, removing old caulk or glue from a surface you are keeping. The blade stops at what it is not touching.
If none of those is in your work, skip this page and spend the money on clamps.
Oscillation angle is the specification nobody reads
The number that predicts how fast one of these tools cuts is not amps, volts or OPM. It is the oscillation angle — the total arc the blade swings through, usually between about 2.8 and 4 degrees. Every stroke moves the teeth through that arc, so a wider angle means a longer cut per stroke.
Milwaukee publishes 3.9 degrees for the 2526-20 and says plainly that this is "for faster cutting". Dremel publishes 3.2 degrees for the MM50. In practice that difference is obvious: the Milwaukee gets through a 2x faster and buzzes your hand noticeably harder doing it, and the Dremel leaves a slightly cleaner edge and is easier to control on a delicate cut. Neither is better. A wide angle is a cutting tool; a narrow angle is a finishing tool.
It is worth knowing that most makers do not publish this figure at all. Of the six tools here, exactly two do — Milwaukee and Dremel. DEWALT, Fein, SKIL and WEN publish nothing, and we have said so on each product rather than guessing.
The blade mount decides what the tool costs to own
The tool is a one-time purchase. The blades are forever, and a decent wood-cutting blade lasts a handful of cuts in anything with a nail near it. So the mount matters more than the motor.
Universal / OIS mountstake the industry-standard starburst fitting, which means a ten-pack of generic blades costs less than one branded blade. DEWALT publishes a universal accessory adapter on the DCS354B specifically so it accepts "most oscillating tool accessory brands", and that is worth real money over the life of the tool.
Starlock, StarlockPlus and StarlockMaxare Fein and Bosch's three-dimensional cup-shaped mount. It is genuinely better engineering: the accessory seats in three dimensions rather than clamping flat against a face, so it cannot creep, slip or chew its own mounting hole under load. The MM 500 Start is a StarlockPlus tool and fits all Starlock and StarlockPlus accessories. The trade is that Starlock accessories cost more and the choice is narrower.
Proprietary quick-changesystems sit in between — Dremel's MM50 changes accessories wrench-free, and most such tools accept universal blades with the adapter in the box.
Whatever the mount, buy the blade for the material. A bi-metal blade survives a nail; a wood-only blade is faster and cheaper in clean timber; a carbide blade is for abrasive material and costs several times either. For furniture work, bi-metal is the sane default, because the whole reason you reached for this tool is usually that you cannot see what is behind the cut.
Corded or cordless, and the honest arithmetic
A multi-tool is the definition of an intermittent-duty tool. It runs for ten seconds, you look at the cut, it runs for ten more. That makes cordless unusually attractive — the tool is wanted at a doorway, under a cabinet or in a corner far from an outlet, and it is never wanted for long enough to flatten a battery.
It also makes the arithmetic brutal if you own no batteries. The DEWALT and the Milwaukee here are bare tools: add a pack and a charger and a cordless multi-tool becomes the most expensive way to make a cut you make four times a year. The SKIL kit exists precisely for that case — it is the only cordless tool on this page that includes a battery, a charger, blades, a sanding pad and a case — and the Dremel and WEN sidestep the question by having a cord.
The rule is simple. Already on a platform: buy the bare tool. Not on a platform: buy corded, or buy the complete kit, but do not buy into a battery system for this tool alone.
Variable speed matters, for the jobs that are not cutting
Full speed is right for cutting and wrong for everything else. Sanding at 20,000 OPM burns the surface and loads the paper; scraping old finish or adhesive at full speed skates and smears instead of lifting. The scraping and sanding jobs — half of what this tool is actually good for in a furniture shop — want the dial down.
Milwaukee's 12-setting dial is the most usable implementation here. Everything on this page has some form of variable speed; a tool that does not is a tool that can only cut.
Vibration is the specification you feel and nobody publishes
This is a tool whose entire operating principle is vibration, and the difference between a well-balanced one and a cheap one is enormous and completely absent from spec sheets. Fein has built this tool longer than anyone and the MM 500 is the quietest in the hand by a wide margin; budget tools transmit a buzz that is genuinely unpleasant after a few minutes and leaves your fingers numb after twenty.
If the honest answer is "a few cuts a year", that is a cost you can accept and the WEN is a sensible purchase. If you are renovating a house, it is the reason to buy the Fein.
Prices below come from our live price feed and carry the date they were pulled.
The six side by side
Makers' published figures for the six tools ranked above. Blank cells are blank because the manufacturer publishes nothing for that figure, not because we could not be bothered to look.
| Tool | Power | Oscillation angle | Speed |
|---|
| Dremel MM50-01 | 5.0 A, 120V corded | 3.2 degrees | 10,000-23,000 OPM |
| DEWALT DCS354B | 20V MAX, bare tool | Not published | 0-18,000 OPM |
| Fein MultiMaster MM 500 Start | 350 W corded | Not published | Not published |
| Milwaukee 2526-20 | M12, bare tool | 3.9 degrees | 10,000-20,000 OPM |
| SKIL PWR CORE 20 OS5937-10 | 20V brushless, kit | Not published | Not published |
| WEN MT3537 | 3.5 A corded | Not published | Not published |
Where these numbers come from
Dremel's own product page publishes 5.0 amps, 120V, a 3.2 degree oscillating angle and 30 accessories for the MM50-01, and gives the speed range as 10,000-23,000 OPM; several retailers publish the top figure as 21,000 instead, so the page reports Dremel's own number and flags the disagreement rather than averaging them. DEWALT publishes 0-18,000 OPM, 2-1/3 lb, 11-1/5 in. and a universal accessory adapter for the DCS354B but no oscillation angle. Milwaukee publishes 10,000-20,000 OPM, a 3.9 degree oscillation angle and a 12-setting speed dial for the 2526-20, and publishes neither a weight nor a length.
Fein publishes 350 W, a 3.09 lb weight, a StarlockPlus mount and an exact kit contents list for the MM 500 Start — a backing pad, twelve sanding sheets in grits 60, 80, 120 and 180, three E-Cut blades and a nylon bag — and its technical table is blank for both oscillation rate and oscillation angle. SKIL and WEN publish kit contents in their listings but no oscillation figures at all. Everything above is a published manufacturer or listing specification; we have not tested any of these tools and do not run a lab.
Which blades to buy, and how many
The kits here arrive with between three and thirty accessories, and the sanding sheets are usually the bulk of the count. For woodworking the useful set is small and worth buying deliberately.
Two or three bi-metal plunge blades around 1-1/4 to 1-3/4 in. wide do almost everything — flush cuts, hinge mortises, trimming dowels and plugs. A wider blade is faster in a long straight cut and harder to steer in a tight one. One wood-only blade is noticeably faster in clean timber and is worth having for dowels and plugs where you know there is no metal. A rigid scraper blade is the single most useful non-cutting accessory, because scraping dried glue squeeze-out or old finish out of a molding at low speed is a job with no other good tool. A delta sanding pad with a few sheets handles inside corners.
That is four accessory types and about twenty dollars of consumables. Buy blades in multipacks and treat them as disposable, because they are: the cut that justifies owning this tool is usually the cut where you cannot see what is behind the blade.
Two safety notes specific to this tool
A multi-tool feels harmless, which is the problem. The blade is moving through a tiny arc but it is still a toothed edge at 18,000 strokes a minute, and it will open a fingertip that steadies a workpiece too close to the cut. It also heats the blade and the workpiece far more than a rotating tool does, because most of the energy goes into friction rather than chip removal. Blades come off a long cut hot enough to burn.
Second: the dust. A multi-tool throws a fine, directional spray of dust straight at your face on a plunge cut, and almost none of these tools has useful dust extraction. Wear a respirator and eye protectionfor anything more than one cut — this applies with real force when the cut is into an old painted surface, where the dust may be something worse than wood.
