
SKIL SR660302
Score: 82/100
Bosch GSS18V-40N
Score: 75/100Rankings

The SKIL SR660302 is a cordless 20V brushless random orbital sander featuring a microfiltration dust canister for superior dust management. It offers six variable speed settings and includes a battery and charger, making it a complete solution for DIYers. While heavy for delicate tasks, its dust collection and runtime efficiency make it ideal for furniture refinishing.

The Bosch GSS18V-40N is an 18V cordless brushless sheet orbital finishing sander designed for portability and versatility with interchangeable plates. Its main drawback is that it is sold as a bare tool, requiring separate battery and charger purchases. It is best suited for users who value cordless freedom and need to switch between different sheet sizes for detail work.
| Attribute | ![]() | ![]() |
|---|---|---|
40 Wbest | — | |
11,000 RPMbest | 10,000 RPM | |
3 mmbest | — | |
125 mm | 130 mmbest | |
| ↓ lower better | 2.38 kg | 1.09 kgbest |
5 yearsbest | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(4) | ||
Motor Power (W) | 40 W | N/A W |
No-Load Speed (RPM) | 11000 RPM | 10000 RPM |
Orbit Diameter (mm) | 3.0 mm | N/A mm |
Sanding Pad Diameter (mm) | 125 mm | 130 mm |
Ergonomics & Design(5) | ||
Weight (kg) | 2.38 kg | 1.09 kg |
Vibration Reduction | true | N/A |
Switch Type | Dust-sealed | On/Off |
Handle Type | Palm | Top |
Cord Length (m) | m | N/A m |
Features & Accessories(1) | ||
Dust Collection System | Canister | Dust Bag |


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

Professional reviewers praise the efficient brushless motor and advanced PWRCore battery platform, highlighting the microfiltration dust collection as a major strength.
Users express high satisfaction with dust capture and smooth finishes, though some note the tool feels heavy for delicate tasks.

The search results do not contain dedicated professional reviews or expert evaluations from established tool review publications. However, product descriptions from authorized retailers emphasize that the tool delivers corded-like power despite being cordless, suggesting manufacturers position it as a capable alternative to corded models. The emphasis on the brushless 18V motor providing extended runtime indicates this is considered a significant selling point for professional and DIY users.
The search results provided do not include customer reviews, user testimonials, or feedback from everyday consumers. Therefore, I cannot report on common praise or recurring complaints from actual users based on these sources.
“Catches a ton of dust”

“Super smooth finishes”

“Absolute beast for shop use”


