Bosch ROS20VSK
Score: 85/100
DEWALT DWE6421
Score: 78/100Rankings
The Bosch ROS20VSK is a 5-inch corded random orbit palm sander designed for smooth, swirl-free finishes on flat and contoured surfaces. Its lightweight design and variable speed control make it highly comfortable for detailed work. While it lacks a brushless motor, its compact ergonomics and included carrying case make it a strong value for DIYers and light professionals.
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 | 12,000 RPMbest | |
120 Vbest | 120 Vbest | |
2.5 mmbest | 2.38 mm | |
2.5 A | 3 Abest | |
5 inbest | 5 inbest | |
| ↓ lower better | 1.59 kg | 1.31 kgbest |
— | 1.83 mbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Sanding Performance(1) | ||
Orbit Diameter (mm) | 2.5 mm | 2.38 mm |
Ergonomics & Features(5) | ||
Dust Collection | Microfilter Canister | Bag |
Tool Weight (kg) | 1.59 kg | 1.31 kg |
Switch Type | Unknown | Dust-sealed |
Soft Start | false | |
Pad Brake | false | |
Power & Performance(2) | ||
Motor Amperage (A) | 2.5 A | 3 A |
Speed Control | Variable | Fixed |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highly praise the Bosch ROS20VSK for its swirl-free finishing capabilities, low vibration, and comfort during prolonged use.
Everyday users and general overviews align with professional praise, highlighting comfort, power, and finish quality as common positives.
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.
“Perfect for DIY projects”
“Low vibration is real”
“Quick paper changes”
