DeWalt DW3191 vs. Irwin 4935560

We’ll take a look at these two circular saw blades: the DeWalt DW3191 and the Irwin 4935560.

Features & Benefits

Size

Both saw blades have a 7 1/4” diameter and fit on a 5/8” diameter arbor. Typical circular saws have a 5/8” arbor and take 7 1/4” diameter blades. This means that both products are generally compatible with most circular saws. If in doubt, refer to the manual for your saw to verify what size of blade your circular saw can take.

The DW3191 is 0.045” thick and cuts a 0.071” (thin) kerf. The 4935560 is 0.063” thick and cuts a 0.079” (thin) kerf. (The term “kerf” is the width of the cut that the blade leaves in the material being cut.)

Teeth

Both circular saw blades have carbide teeth in an ATB configuration. The DW3191 has 18 teeth. The 4935560 has 68 teeth.

Alternate top bevel (ATB) teeth have a bevel shape rather than being straight across. This design lets them slice through wood instead of tearing out chunks, which results in smoother crosscuts. ATB teeth do have a tendency to break more often than flat-top teeth.

Pros & Cons

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

For the DW3191:

For the Irwin:

Comparison Chart

Here is a full side-by-side look at these products’ specs. You can view comparisons of the DeWalt DW3191 with other products

	DeWalt DW3191	Irwin 4935560
Brand	DeWalt	Irwin
Blade Diameter	7 1/4”	7 1/4”
Arbor Size	5/8” (round)	5/8”
Weight		0.8 lbs
Thickness	0.045”	0.063”
Kerf	0.071”	0.079”
Tooth Count	18	68
Tooth Config	ATB	ATB
Tooth Material	carbide	carbide
Rake	15°
Expansion Slots
Pros	Heavy-duty shoulders stand up to nails in wood with no kickback 18-tooth count makes for fast demolition and dismantling of wood	Cuts through multiple layers of thin steel easily Leaves smooth metal edges without tearing Durable, up to hundreds of cuts of thin steel
Cons	Leaves rough cuts, not for precision work	Dulls quickly on thicker steel than intended for
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