DeWalt 10” x 40T PrecisionTrim vs. Oshlun 10” x 24T ATB

Let’s take a look at these two table saw blades: the DeWalt 10” x 40T PrecisionTrim and the Oshlun 10” x 24T ATB.

Features & Benefits

You can read more in our complete guide to buying a table saw blade.

Related: Choosing the Right Table Saw Blade

We’ve also got a roundup of the best 10” table saw blades.

Size

Both products are 10” in diameter and have a 5/8” arbor hole. Most table saws have a 5/8” arbor and can accommodate blades up to 10” in diameter. So both saw blades should be widely compatible with many saws.

The 10” x 40T PrecisionTrim has a 0.098” (thin) kerf. The 10” x 24T ATB has a 1/8” (full) kerf. (The term “kerf” refers to the width of the cut that the blade makes in the material being cut.)

A 1/8” kerf is considered a “full” kerf and should work with most table saws. On lower-powered saws, a full-kerf blade might cause the saw to struggle with thicker or harder material, compared with a thin-kerf blade.

A kerf less than 1/8” is called a “thin” kerf. Thin kerfs waste less material than full-kerf blades and make it easier for saws to cut through thick or hard material. Most, but not all, table saws can accept thin-kerf blades. Make sure your riving knife is thinner than the kerf, or dangerous binding can occur.

Teeth

Both table saw blades have C4 carbide teeth in an ATB configuration. The 10” x 40T PrecisionTrim has 40 teeth. The 10” x 24T ATB has 24 teeth.

Blades with fewer than 40 teeth are typically geared towards ripping wood lengthwise. For crosscuts or general-purpose use, you might consider blades with a higher tooth count. Blades with between 40 and 60 teeth are usually considered general-purpose blades. They will be adequate for both rip cuts and crosscuts, but not quite like a blade specifically made for those cuts.

Alternate top bevel (ATB) teeth are cut on a bevel rather than being flat across. This shape lets them slice through wood rather than tearing out chunks, resulting in cleaner crosscuts. They do tend to be less durable than flat-top teeth.

Pros & Cons

Let’s take a look at some of the pluses and minuses of these products.

For the DeWalt:

For the Oshlun:

Comparison Chart

Below is a full side-by-side comparison of these products’ specs. You can view comparisons of the DeWalt 10” x 40T PrecisionTrim with other products

	DeWalt 10” x 40T PrecisionTrim	Oshlun 10” x 24T ATB
Brand	DeWalt	Oshlun
Blade Diameter	10”	10”
Arbor Size	5/8”	5/8”
Kerf	0.098”	1/8”
Tooth Count	40	24
Tooth Config	ATB	ATB
Tooth Material	C4 carbide	C4 carbide
Expansion Slots
Pros	Thick C4 carbide teeth with a precision finish Very clean crosscuts Good performance ripping hardwood and cutting plywood More durable than blades with higher ATB tooth angle Quiet when cutting, not much louder than when spinning No chip-out when cutting material like melamine	More moderately priced than some specialty blades Aggressive cutting makes for easy ripping of lumber No burning when ripping hardwood Little to no tear-out when ripping
Cons	Teeth are somewhat brittle and can be damaged if hitting nails or if used on metal Some customers received blades with a noticeable warp or wobble	Center hole may sometimes ship slightly undersized and require sanding to fit smoothly Cuts have blade marks and will need sanding before gluing or finishing
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