Rockwell RK3441K vs. Skilsaw SPT77WML-01

Let’s take a look at these two circular saws: the Rockwell RK3441K and the Skilsaw SPT77WML-01.

Features & Benefits

You can read our roundup of the best compact circular saws and the best full-size circular saws.

Power & Motor

Both circular saws are corded and run on 120 V. The RK3441K draws 5 amps. The SPT77WML-01 draws 15 amps. Standard U.S. residential circuits are 120 V, 15 A, which will support either of the products.

The RK3441K motor spins at 3500 rpm and the SPT77WML-01 motor spins at 5300 rpm. Don’t get too caught up in these numbers, since the manufacturers measure them under ideal conditions, and they don’t have a direct impact on the saw’s real-world ability to handle different material.

The RK3441K has a direct-drive motor. The SPT77WML-01 has a worm-drive motor. Direct-drive motors are usually lighter than other styles, but their side mounting makes the saw a little harder to control. Worm-drive motors are longer and heavier, but often more powerful and easier to control due to the weight being more centered.

Blades & Capacity

The RK3441K takes 4 1/2” diameter blades and has a 3/8” arbor. The SPT77WML-01 accepts 7 1/4” diameter blades and has a 5/8” arbor. Most 8-to-10” blades have a 5/8” arbor hole, so this size arbor gives you a lot of options.

The RK3441K can bevel the blade up to 45°, is able to cut up to 1 11/16” at a 90° angle, and will cut up to 1 1/8” deep at 45°. The SPT77WML-01 can bevel up to 53°, can cut up to 2 3/8” at an angle of 90°, and is able to cut up to 1 15/16” deep at a 45° 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 Skilsaw has stops at 45°.

Both saws have 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 Rockwell:

For the Skilsaw:

Comparison Chart

Here’s a full side-by-side comparison of these products’ specs. You can view comparisons of the Rockwell RK3441K with other products

	Rockwell RK3441K	Skilsaw SPT77WML-01
Brand	Rockwell	Skilsaw
Power Type	corded	corded
Power - Voltage	120 V	120 V
Power - Amps	5 A	15 A
No-load RPM	3500 rpm	5300 rpm
Blade Diameter	4 1/2”	7 1/4”
Maximum Bevel	45°	53°
Depth of Cut (at 90°)	1 11/16”	2 3/8”
Depth of Cut (at 45°)	1 1/8”	1 15/16”
Arbor Size	3/8”	5/8”
Dimensions		19 1/2” L × 7” H
Weight	5 lbs	11.5 lbs
Blade - Side	left	left
Drive Mechanism	direct-drive	worm-drive
Stops		45°
Warranty		1 year
Pros	Left-mounted blade improves visibility of cut line Easy-to-operate trigger and safety	Lots of torque for cutting difficult material Good build quality Blade-left design provides good visibility Easy to track straight cut lines
Cons	Some users report that the bolt holding the blade can snap off	Heavier than most direct-drive saws
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