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DEWALT DWE6423, 5 in random orbit sander review

The only random orbit sander on either half of this shelf with a price on its listing — and it publishes an orbit range.

The end of it An orbit rate, a sealed switch and two named collectors — and no orbit diameter, like everything else here.

Every figure below names its source. Each one is a manufacturer specification read off the listing itself. The judgments are ours.

Eight to twelve thousand orbits a minute

Published, variable — and it is half of what characterizes a random orbit sander.

The other half is the orbit diameter, and this page does not have it. Nor does any other listing on either half of this shelf.

A 2.4 mm (0.09 in) orbit cuts fast and leaves a coarser scratch pattern. A 1.5 mm (0.06 in) orbit is slower and finishes finer. Both can run at twelve thousand.

So the most important distinction between two random orbit sanders cannot be made on this site from the makers’ own pages.

A separate counterweight

Which cancels the wobble.

An offset pad pulls the tool sideways once per revolution — twelve thousand times a minute, arriving in the hand as numbness after twenty minutes.

Every random orbit sander has a counterweight. Publishing it as a separate design is a claim about how well it is balanced, not whether it is.

The published Bosch GEX on this shelf publishes nothing at all, and its own page says why: no price, no barcode, nothing here to buy.

A dust-sealed switch

The part that fails on a sander.

Fine dust gets into a trigger switch and the contacts stop making. It is the commonest death of a cheap sander, and sealing it is a cheap fix nobody advertises.

Two listings on this shelf publish it. Both are American, and the other is the SKIL detail sander.

Two collectors, named

The DWV010 and the DWV012, fitting directly.

For an owner of one of them that is complete; for anybody else it is nothing, because the port diameter is not published.

The extraction-fittings shelf in this catalog is thirty pages about why the diameter is the thing that matters. A port of unstated size and two model numbers is a port a buyer has to measure.

The abrasive is the running cost

A sanding machine is bought once and fed for years.

So the size of the belt, the disc or the sleeve it takes is a bigger decision than the motor: a common size is sold everywhere and cheaply, and an odd one ties the machine to one supplier at whatever price that supplier charges.

The published Scheppach BTS800 page on this shelf is recommended on exactly that ground — it publishes both consumable sizes, and both are the common ones — and the abrasives shelf in this catalog is where the arithmetic lands.

Availability

Read on the day this page was built: $79 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-07. The live price is at the top of the page.

The good side, and the catch

Strengths

  • Publishes an orbit range, which the published Bosch here does not publish at all
  • A separate counterweight, which is what a random orbit sander vibrates without
  • Names the collectors its port fits, which nothing else on this shelf does
  • A dust-sealed switch, which is the part that fails on a sander

Compromises

  • No port diameter, only two collector model numbers
  • No orbit diameter, which decides how aggressive the sander is
  • No weight published
  • Three amps is modest next to the 6 and 7 of the belt sanders here

Specifications

TypeRandom orbit, 5 in pad — 127 mm (5 in)
Motor3 A · No wattage published
Speed8,000 to 12,000 orbits per minute, variable, published
VibrationA separate counterweight design, stated to reduce vibration
SwitchDust sealed, stated to protect against dust ingestion for longer switch life
Dust portDesigned to fit directly to the maker's DWV010 or DWV012 collectors — the only named collector fitment on either half of this shelf · No port diameter is published
HeightShorter, stated to let the user get closer to the workpiece
GripRubber overmould on the critical areas
Part numberDWE6423
Amazon referenceB0858C7X3M
EAN0885911350013

What comes up most often

What does the counterweight do?

Cancels the wobble. A random orbit sander spins an offset pad, and an offset mass pulls the tool sideways once per revolution — twelve thousand times a minute, which arrives in the hand as numbness after twenty minutes. A counterweight on the opposite side of the shaft balances it. Every random orbit sander has one; publishing it as a separate design is a claim about how well it is balanced rather than whether it exists. The published Bosch GEX on this shelf publishes nothing at all, and its page says why: no price, no barcode, nothing here to buy.

What is missing that would decide between sanders?

The orbit diameter. A random orbit sander is characterized by two numbers — the orbits per minute, which this publishes, and the orbit diameter, which it does not. A 2.4 mm (0.09 in) orbit cuts fast and leaves a coarser pattern; a 1.5 mm (0.06 in) orbit is slower and finishes finer. Both machines run at the same OPM. Across both halves of this shelf, not one listing publishes an orbit diameter, which means the most important distinction between random orbit sanders cannot be made on this site from the makers’ own pages.

Naming two collectors — does that help?

For an owner of one of them, completely; for anybody else, not at all. The port is stated to fit the DWV010 and DWV012 directly, which means no adapter and no tape. What it does not publish is the diameter — and the extraction-fittings shelf in this catalog is thirty pages about why a diameter is the thing that matters. A sander with a port of unstated size and two named collectors is a sander a buyer has to measure.

Against the closest woodworking machines on price

Between woodworking machines of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.

Model Price TypeMotor
DEWALT DWE6423, 5 in random orbit sander $79 Random orbit, 5 in pad — 127 mm (5 in)3 A · No wattage published
Skil 7510-01, 3 × 18 in belt sander $48 Portable belt sander6.0 A, stated to sand any type of wood surface · No wattage and no belt speed published
WEN 6502T belt and disc sander $110 Belt and disc in one machine4.3 A at up to 3,600 rpm · No wattage is published
WEN 6321, 3 × 21 in belt sander $39 Portable belt sander7 A · No wattage published

Where the models diverge, in woodworking machines

  • If price decides: WEN 6321, 3 × 21 in belt sander, at $39.
  • Highest Motor in the table: WEN 6321, 3 × 21 in belt sander (7 A · No wattage published).

Who buys this one, among woodworking machines

Finishing a surface before a finish goes on it, with a DEWALT extractor already in the shop

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 3,000.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for woodworking machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

How we assess these woodworking machines