The arbor size is the single measurement that determines whether a replacement blade fits your machine or sits uselessly in your drawer. I've compared the available options and analyzed buyer feedback so you don't have to guess. In my view, matching your specific saw model to the correct spindle width matters more than any other spec. Read on for my ranked breakdown of how these six options compare.
| Best For | Product | Name | Score | |
|---|---|---|---|---|
| Mighty Mite Saws |  |
MTP TM 4" 100mm Carbide 24 Tooth Blade for Dremel Table Saw 580 580-2 588 1/2 Arbor TCT 4 Inch 1/2" Arbor for Mighty Mite | 9.8/10 | View on Amazon |
| Dremel Ultra-Saw Owners |  |
Dremel US500-01 Ultra-Saw 4-Inch Carbide Wood Cutting Wheel, White | 9.5/10 | View on Amazon |
| General Wood Cutting |  |
uxcell 4" (109mm) Circular Saw Blade, 40T 5/8" Arbor, Wood Tungsten Carbide Tipped (TCT) Slitting Saw | 9.2/10 | View on Amazon |
| High RPM Applications |  |
uxcell 4"(105mm) Circular Saw Blade, 40T 5/8" Arbor 12000RPM Wood Carbide Tipped Slitting Saw | 8.9/10 | View on Amazon |
| Precision Slitting Work |  |
Utoolmart Circular Saw Blade, 4" Carbide Tipped Slitting Saw, 40T Saw Blade | 8.6/10 | View on Amazon |
| Alternative Tool Compatibility |  |
MTP Brand Ultra-Saw 4 in Dia Wheel Wood/Plastic Carbide Blade Circular Power Tool US500-01 US40 Ultra Saw US500 (1) | 8.2/10 | View on Amazon |
1. MTP TM 4" 100mm Carbide 24 Tooth Blade for Dremel Table Saw 580 580-2 588 1/2 Arbor TCT 4 Inch 1/2" Arbor for Mighty Mite
This model earned my top ranking because of its exact half-inch arbor fit for legacy Mighty Mite saws. I'd rank this first for anyone struggling to find compatible blades for older tabletop machinery.
The 24-tooth configuration strikes a solid balance between clean cuts and fast feed rates. I think woodworkers will appreciate how readily this cuts through standard stock without bogging down the motor.
Buyers frequently mention that this blade fits older Mighty Mite table saws precisely.
Reviewers note that the carbide teeth hold their edge through moderate lumber cutting.
Users highlight this as a reliable direct replacement for discontinued factory blades.
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2. Dremel US500-01 Ultra-Saw 4-Inch Carbide Wood Cutting Wheel, White
This wheel is built specifically for Dremel Ultra-Saw owners who need factory-certified compatibility. I'd point most brand-loyal users straight to this option to avoid any fitment surprises.
The abrasive carbide grit handles plywood and dimensional lumber with predictable efficiency. I consider this a safe default choice if you prefer sticking strictly to OEM accessories.
Customers confirm this wheel drops straight into standard Ultra-Saw arbors without modification.
Feedback indicates reliable performance for general flush-cutting and plunge tasks.
Some buyers note that it wears out faster when pushed through dense hardwoods.
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3. uxcell 4" (109mm) Circular Saw Blade, 40T 5/8" Arbor, Wood Tungsten Carbide Tipped (TCT) Slitting Saw
An unusual 109mm diameter gives this blade a slightly wider reach than standard four-inch discs. I find that extra millimeter or two comes in handy for deep crosscuts on tricky stock.
The 40-tooth tungsten carbide layout delivers noticeably smoother edges on finish lumber. I think DIYers will appreciate the clean cut quality right off the saw.
Shoppers mention the slightly oversized diameter requires checking your tool clearance first.
Reviewers praise the fine finish left by the forty-tooth arrangement.
Users caution that the five-eighths inch arbor needs an adapter for smaller hobby saws.
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4. uxcell 4"(105mm) Circular Saw Blade, 40T 5/8" Arbor 12000RPM Wood Carbide Tipped Slitting Saw
The most common complaint about this blade involves confusion over its large arbor size relative to small hobby tools. Once you sort out the mounting requirements, however, this high speed design proves remarkably capable.
Rated for up to 12,000 RPM, it handles fast-spinning mini saws without flexing or warping. I'd recommend this to anyone running specialized rotary tools at maximum velocity.
Buyers report that the high RPM rating prevents dangerous blade distortion under heavy loads.
Feedback points out the necessity of measuring your spindle before ordering the five-eighths inch center hole.
Users note solid durability when cutting thin plastics and softwoods.
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5. Utoolmart Circular Saw Blade, 4" Carbide Tipped Slitting Saw, 40T Saw Blade
Compared to the high-speed uxcell option above, this blade focuses purely on delicate material separation rather than raw velocity. I see this as a specialized tool for tight joinery rather than general demolition.
The dense 40-tooth count creates minimal splintering on delicate plywood veneers. I'd suggest this for detailed hobby work where clean edges matter most.
Shoppers highlight the precise kerf for clean joinery cuts.
Reviewers note the blade excels at shallow grooving and slotting tasks.
Feedback indicates it struggles when forced through thick, wet timber.
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6. MTP Brand Ultra-Saw 4 in Dia Wheel Wood/Plastic Carbide Blade Circular Power Tool US500-01 US40 Ultra Saw US500 (1)
This blade gained popularity as an affordable aftermarket alternative for Dremel rotary saws. After evaluating buyer feedback, I think that reputation holds up reasonably well for basic workshop tasks.
It cuts through both softwood and plastic without requiring proprietary brand accessories. I consider it a sensible backup to keep in your toolbox for mixed-material jobs.
Users appreciate the lower price point compared to original manufacturer blades.
Buyers note decent performance on PVC and thin trim boards.
Some reviews mention inconsistent arbor tolerances across individual units.
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Choosing Between Them
My top recommendation is the MTP TM 4-Inch Carbide Blade because its half-inch arbor matches specific vintage saw requirements, though you must verify your exact tool model before purchasing since arbor sizing varies wildly across this category. If you run a branded rotary tool, the Dremel Ultra-Saw Wheel suits dedicated brand loyalists, while the various uxcell and Utoolmart blades serve hobbyists working with five-eighths inch spindles or high-RPM mini saws.
Keep in mind that aftermarket accessories rarely share universal dimensions, making careful measurement of your machine mandatory. I strongly advise checking your tool manual twice before ordering any blade with an unfamiliar arbor diameter.
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