Hychika MS-85C vs. Rockwell RK3440K

Shopping for a new circular saw? Compare the features of the Hychika MS-85C and Rockwell RK3440K and make an informed purchase!

Let’s take a look at these two circular saws: the Hychika MS-85C and the Rockwell RK3440K.

Features & Benefits

You can read our roundup of the best compact circular saws.

Power & Motor

Both circular saws are corded, run on 120 V, and draw 4 amps. Standard U.S. residential circuits are 120 V, 15 A, which will support either of the products.

The MS-85C motor spins at 4500 rpm and the RK3440K motor spins at 3500 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 MS-85C 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

Both saws take 3 3/8” diameter blades. The MS-85C has a 3/8” arbor. The RK3440K has a 19/32” arbor.

Both circular saws can bevel the blade up to 0°. The MS-85C can cut up to 1” at an angle of 90°. The RK3440K is able to cut up to 1 1/16” deep 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.

Both products 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:

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 is a full side-by-side comparison of these products’ specs. You can view comparisons of the Hychika MS-85C with other products

and comparisons of the Rockwell RK3440K with other products

	Hychika MS-85C	Rockwell RK3440K

Brand	Hychika	Rockwell
Power Type	corded	corded
Power - Voltage	120 V	120 V
Power - Amps	4 A	4 A
No-load RPM	4500 rpm	3500 rpm
Blade Diameter	3 3/8”	3 3/8”
Maximum Bevel	0°	0°
Depth of Cut (at 90°)	1”	1 1/16”
Arbor Size	3/8”	19/32”
Weight	7 lbs	4 lbs
Blade - Side	left	left
Drive Mechanism	direct-drive	direct
Pros		Very lightweight Laser guide for accurately following cut lines
Cons		Safety mechanism can be confusing, requires pushing plate down onto work surface
	Check Price	Check Price