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Bosch ROS20VSC Random Orbit Sander (US substitute for the EU-only GEX 125-1 AE): What to Know
This entry replaces the originally drafted Bosch GEX 125-1 AE. That model number is Bosch's European/UK 220-240V professional designation, sold through Bosch's UK and EU shops and Amazon's European storefronts, but it has no standard listing on Amazon.com for US buyers. An independent comparison (The Wood Knight) explicitly pairs the GEX 125-1 AE with the ROS20VSC as Bosch's equivalent US 120V model, so the ROS20VSC is used here as the honest substitute rather than reporting a dead end.
The ROS20VSC is a corded, 5-inch random orbit sander with a 2.5-amp motor and variable speed from 7,500 to 12,000 OPM, with a 3/32 in. (about 2.5mm) orbit diameter, in the same finish-focused range as the DeWalt and Ryobi here. Dust collection uses Bosch's microfilter system built into a removable, see-through canister rather than a fabric bag, which several sources describe as more effective at containing fine dust than bag-based systems, including the bag-style dust collector Bosch fits to the GEX 125-1 AE in some European kit configurations, a real difference in accessory bundling between the two regional versions, not just a name change.
The pad uses a standard 8-hole hook-and-loop pattern compatible with common Bosch and generic 5-inch discs. Bosch's own marketing and the tool's independent reviews are consistent on core performance (fast material removal without swirl marks); the main inconsistency worth flagging is the fact that this is a regionally-renamed product at all, which is easy to miss if you're comparing spec sheets found via a general search rather than a US-specific one.
Key Listed Features
2.5-amp motor with variable speed from 7,500 to 12,000 OPM
3/32 in
Removable, see-through microfilter dust canister rated to capture particles down to about 1/2 micron
Standard 8-hole hook-and-loop 5-inch pad with included carrying bag
