DeWalt DWE575SB vs. Rockwell RK3440K
Looking for a new circular saw? Compare the benefits of the DeWalt DWE575SB and Rockwell RK3440K in order to make an informed purchase!
We’ll take a look at these two circular saws: the DeWalt DWE575SB and the Rockwell RK3440K.
Features & Benefits
For more information, read more in our roundup of the best compact circular saws and the best full-size circular saws.
Power & Motor
Both circular saws are corded and require 120 V. The DWE575SB draws 15 amps. The RK3440K draws 4 amps. In the U.S., standard residential circuits are 120 V, 15 A, which will support either of the products.
The DWE575SB motor produces 5200 rpm and the RK3440K motor produces 3500 rpm. Don’t pay too much attention to these numbers, because the manufacturers measure them under no-load conditions, so they don’t have a useful impact on the saw’s real-world capability to handle different material.
The DWE575SB has a direct-drive motor. The RK3440K has a direct motor. Direct-drive motors are usually lighter than other styles, but their side mounting makes the saw a little harder to control.
Blades & Capacity
The DWE575SB accepts 7 1/4” diameter saw blades and has a 5/8” arbor. The RK3440K takes 3 3/8” diameter blades and has a 19/32” arbor. Most 8-to-10” blades have a 5/8” arbor hole, so this size arbor maximizes blade compatibility.
The DWE575SB can bevel up to 57°, is able to cut up to 2 9/16” at an angle of 90°, and can cut up to 2” deep at 45°. The RK3440K can bevel its blade up to 0° and will cut up to 1 1/16” at a 90° angle.
When beveling the saw, most circular saws will have positive stops at common angles such as 45° and 90°. This ensures you are making precise cuts. Some saws have additional stops at other angles.
The DeWalt has stops at 22.5°, 45°.
The DeWalt has the blade on the right side of the body. The Rockwell has the blade on the left side of the saw. Right-handers sometimes find it easier to see and control blades mounted to the left, while left-handers might find the same true for right-mounted blades.
Pros & Cons
Let’s take a look at some of the pluses and minuses of these products.
For the DeWalt:
Pros
- Electric brake to stop the blade
- Lighter than many other models
- Dust blower effective at removing dust
Cons
- Brake does not stop blade immediately
- No safety switch
For the RK3440K:
Pros
- Very lightweight
- Laser guide for accurately following cut lines
Cons
- Safety mechanism can be confusing, requires pushing plate down onto work surface
Comparison Chart
Here’s a full side-by-side look at these products’ specs. You can view comparisons of the DeWalt DWE575SB with other products
| DeWalt DWE575SB | Rockwell RK3440K | |
|---|---|---|
| | |
| Brand | DeWalt | Rockwell |
| Power Type | corded | corded |
| Power - Voltage | 120 V | 120 V |
| Power - Amps | 15 A | 4 A |
| No-load RPM | 5200 rpm | 3500 rpm |
| Blade Diameter | 7 1/4” | 3 3/8” |
| Maximum Bevel | 57° | 0° |
| Depth of Cut (at 90°) | 2 9/16” | 1 1/16” |
| Depth of Cut (at 45°) | 2” | n/a |
| Arbor Size | 5/8” (round) | 19/32” |
| Weight | 8.8 lbs | 4 lbs |
| Blade - Side | right | left |
| Drive Mechanism | direct-drive | direct |
| Stops | 22.5°, 45° | n/a |
| Motor Type | brushed | |
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