
DEWALT DWE6421
Score: 78/100
Worx WX823L
Score: 82/100Rankings

The Worx WX823L.9 is a 20V cordless brushless random orbital sander featuring patented low-vibration technology and variable 3-speed control up to 11,000 SPM. It offers superior runtime and power compared to brushed models, with a dust-sealed switch for durability. Ideal for DIY enthusiasts and occasional professionals needing portable sanding for small to medium projects.

The DEWALT DWE6421K is a lightweight, corded 5-inch random orbit sander featuring a 3.0-amp motor and a fixed 12,000 OPM speed. It is designed for general-purpose woodworking and light material sanding, offering a low-profile build and vibration-reduction technology to enhance user comfort during extended use. It is best suited for DIYers and hobbyists doing occasional refinishing, deck prep, or furniture restoration.
| Attribute | ![]() | ![]() |
|---|---|---|
12,000 RPMbest | 11,000 RPM | |
120 Vbest | 20 V | |
2.38 mm | 3 mmbest | |
3 Abest | — | |
5 inbest | 4.92 in | |
| ↓ lower better | 1.31 kgbest | 1.402 kg |
1.83 mbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Sanding Performance(2) | ||
Orbit Diameter (mm) | 2.38 mm | 3 mm |
Pad Diameter (in) | 5 in | 4.92 in |
Ergonomics & Features(4) | ||
Dust Collection | Bag | Vacuum Port |
Tool Weight (kg) | 1.31 kg | 1.402 kg |
Soft Start | false | |
Pad Brake | false | |
Power & Performance(4) | ||
Power Source | Corded | Cordless |
Voltage (V) | 120 V | 20 V |
No-Load Speed (RPM) | 12000 RPM | 11000 RPM |
Speed Control | Fixed | Variable 3-speed |


Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the DWE6421 as a solid choice for a variety of sanding applications due to its balanced speed and accessible design. They praise the 2.9-pound weight and 5.5-inch height for accessibility in tight spaces and emphasize the counterweight vibration-reduction system as a meaningful comfort feature.
Everyday users appreciate the DWE6421K as an affordable entry-level sander that handles typical home workshop tasks effectively. Common praise focuses on the real reduction in hand vibration, the convenience of quick paper changes, and the lightweight nature of the tool for overhead work.

Professional reviewers describe the Worx WX823L.9 as delivering exceptional performance and precision, highlighting the advantages of the brushless motor, low vibration, and ergonomic design.
Users praise the cordless convenience, ease of changing grits, and vibration reduction, with satisfaction regarding the dust bag utility.
“Perfect for DIY projects”

“Low vibration is real”

“Quick paper changes”


