Ridgid R4520 vs. Skilsaw SPT99T-01

We’ll take a look at these two table saws: the Ridgid R4520 and the Skilsaw SPT99T-01.

Features & Benefits

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

Related: Table Saw Buying Guide: What to Look For

Power & Motor

Both products are corded and run on 120 V. The R4520 draws 13 amps. The SPT99T-01 draws 15 amps. Standard U.S. residential circuits are 120 V, 15 A, which will support either of the saws.

The R4520 has a motor that spins at 3450 rpm and the SPT99T-01 has a motor that spins at 5300 rpm. But you shouldn’t get too caught up in the RPM numbers, since the manufacturers test them under ideal conditions, and they don’t have a meaningful correlation with the saw’s real-world ability to handle various types of material.

Blade Compatibility

Both table saws have a 5/8” arbor. The R4520 accepts 10” diameter blades. The SPT99T-01 takes 8 1/4” diameter saw blades. 10” is the most common diameter of table saw blade, so you’ll be able to find a huge assortment of blades to suit your needs. Most 8-to-10” blades have a 5/8” arbor hole, so this size arbor maximizes blade compatibility.

The Ridgid accepts dado blades up to 13/16” thick and 6” in diameter. The Skilsaw takes dado blades up to 1/2” thick.

Size & Capacity

The Ridgid can rip up to 30” of wood on the right of the blade and has 15” of rip capacity on the left side of the blade. The Skilsaw has 25” of rip capacity on the right and has 12” of rip capacity on the left side. All else being equal, more rip capacity is better, but it often also means a larger, heavier saw. Think about how big of rip cuts you’ll be making to help choose the right size saw for you.

The R4520 can bevel its blade up to 4°, can cut up to 3 1/4” at a 90° angle, and can cut up to 2 1/4” deep at a 45° angle. The SPT99T-01 can bevel the blade up to 46.5°, can cut up to 2 5/8” at a 90° angle, and can cut up to 1 7/8” deep at a 45° angle.

The table on the Ridgid is 40” wide and 27” deep. The table on the Skilsaw is 23 1/2” wide and 21 1/2” deep.

Pros & Cons

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

For the R4520:

For the Skilsaw:

Comparison Chart

Below is a full side-by-side look at these products’ specs. You can view comparisons of the Ridgid R4520 with other products

	Ridgid R4520	Skilsaw SPT99T-01
Brand	Ridgid	Skilsaw
Power Type	corded	corded
Power - Voltage	120 V	120 V
Power - Amps	13 A	15 A
Table Dimensions	40” W × 27” D	23 1/2” W × 21 1/2” D
Miter Slot Dimensions	3/4” W × 3/8” D	3/4” W × 3/8” D
No-load RPM	3450 rpm	5300 rpm
Rip Capacity (Right)	30”	25”
Rip Capacity (Left)	15”	12”
Blade Diameter	10”	8 1/4”
Maximum Bevel	4°	46.5°
Depth of Cut (at 90°)	3 1/4”	2 5/8”
Depth of Cut (at 45°)	2 1/4”	1 7/8”
Maximum Dado Width	13/16”	1/2”
Arbor Size	5/8”	5/8”
Dust Port Diameter	4”	2 1/4”
Weight	267 lbs	44 lbs
Drive Mechanism		worm-drive
Warranty	lifetime; if registered within 90 days of purchase	1 year
Pros	Cast iron table for maximum precision Usually available at a very good price Stable and nearly vibration-free	High torque from worm drive for cutting difficult materials Blade and fence are square out of the box Rack-and-pinion fence is easy to adjust Dust collection is very effective
Cons	Occasional reports of defective trunnions causing alignment problems	Miter saw is somewhat sloppy, hard to dial in precisely Dust collection port is easily broken
Included Accessories		24-tooth carbide blade Miter gauge Rip fence Smart guard system Push stick Adjustment wrench
	Check Price	Check Price