Key Features
Light Up the FinishThe integrated LED light ring helps you catch swirls, low spots, and missed areas while you sand, so you spend less time fixing the surface later. Cordless FreedomNo cord and no hose required when you use the included dust bag. That matters when you are moving around doors, trim, stairs, and other awkward workpieces. One-Hand ControlThis Festool cordless random orbit sander is built with a low-profile body and vibration protection, which gives you better control on flat panels and overhead sanding with less fatigue.
Overview
The Festool ETSC 2 125 4.0 I-Plus Cordless Random Orbit Sander Kit is a cordless finish sander built for surface prep, fine sanding, and finish-ready work on wood and painted surfaces. This is a cordless random orbit sander designed for finish sanding and surface inspection. Model Number 577738. If your work depends on spotting flaws before the final coat goes on, this tool stands out because the built-in LED light ring lets you see the surface while you are sanding instead of finding defects after the fact.
What makes this sander different is not just that it is cordless. Festool paired battery power with a 5 inch sanding pad, a 9/64 inch sanding stroke, and a variable eccentric motion speed range of 6,000 to 10,000 RPM. In plain terms, that gives you the control to work across different materials while keeping the finish quality expected from a true random orbit sander. The variable speed matters when you are moving between softer painted surfaces, solid wood, trim, doors, or detailed cabinetry parts and do not want to sand too aggressively.
The LED ring is the feature most guys will notice first, and for good reason. On a finish sander, visibility is everything. Festool gives you built-in lighting modes on the tool, plus Bluetooth app control for adjusting brightness and afterglow settings. That means you can sand, stop, and inspect without dragging over a separate light or shifting the workpiece around to catch surface imperfections. If you do furniture work, cabinetry, or finish carpentry, that can save rework and help you catch issues before stain or paint makes them obvious.
The body design is aimed at one-handed control. Festool calls out the low-profile shape and hand-close-to-surface grip, and that is a real benefit on vertical work, narrow parts, and overhead sanding. Instead of feeling top-heavy, the tool stays closer to the work surface, which helps with control and consistency. Add in the built-in vibration protection, and it is better suited for longer sanding sessions where hand fatigue can start to affect your finish quality.
On the practical side, the brushless EC-TEC motor is there for the reasons you would want it: strong output, quieter operation, and less maintenance. Festool also includes a carbide-tipped sanding pad brake, which helps keep the pad from spinning too fast at startup or when idling. That matters because a fast free-spinning pad can mark up a surface when you set the tool down. This feature helps reduce those accidental scratches that cost time to fix.
Dust control is flexible depending on how you work. The ETSC 2 can be used with the included dust bag for hose-free mobility, which makes sense for punch-list work, site installs, stairs, doors, and quick sanding jobs where a dust extractor is more hassle than help. It also has a 1-1/16 inch dust extraction connection if you want to tie it into a dust collection setup. That gives you the option to work cleaner in the shop or stay mobile on site.
System compatibility is another strong point. This kit runs on Festool 18V batteries and includes two 4.0 Ah HighPower battery packs plus a TCL 6 rapid charger. If you are already on Festool 18V cordless tools, battery sharing is straightforward. That makes the ETSC 2 a better fit in a Festool workflow than a one-off sanding tool, especially for users who want common chargers and packs across multiple tools.
Who should buy it? This is a smart buy for cabinet installers, finish carpenters, remodelers, furniture builders, painters doing surface prep, and serious DIY users who care about final surface quality. If you mostly do rough stock removal, this is not the tool you start with. If your job is the last sanding pass before finish, edge cleanup on installed work, or fine sanding in tight spaces where cords get in the way, this is exactly the kind of sander that earns its keep.
See Surface Defects Before Finish Goes On
The built-in LED light ring is not a gimmick. It helps you catch scratches, uneven sanding, and surface flaws while you are still working the panel instead of after primer, stain, or topcoat.
- Integrated light ring with selectable light modes on the tool
- Bluetooth support lets you adjust lighting functions through the Festool App
Work Freely on Installed Pieces and Tight Areas
On stairs, trim, doors, furniture frames, and overhead work, cords and bulky tool bodies get old fast. The low-profile one-handed design keeps your grip close to the surface for better control where a larger sander feels clumsy.
- Low-height body designed for close-to-surface handling
- Built-in vibration protection helps reduce fatigue during longer sanding sessions
Choose Hose-Free Mobility or Hook Up Dust Extraction
This kit gives you a more flexible setup than a shop-only sander. Use the included dust bag when you want full mobility, or connect to extraction when you want a cleaner sanding station.
- Includes SB-Longlife ETSC 2 dust bag for cordless sanding without a hose
- 1-1/16 inch dust extraction connection diameter for extractor hookup
What’s in the Box
- (1) Festool ETSC 2 125 cordless random orbit sander
- (2) BP 18 Li 4,0 HPC-ASI HighPower battery packs
- (1) TCL 6 rapid charger
- (1) PR ETSC 2 125 protector
- (1) SB-Longlife ETSC 2 dust bag
- (1) ST D125-M8-W sander backing pad
- (1) Systainer3 SYS3 M 187
Key Specifications
| Voltage (V) | 18 V |
|---|---|
| Battery Capacity (Ah) | 4.0 Ah |
| No-Load Speed (RPM) | 6,000 to 10,000 RPM |
| Pad Diameter | 5 in. (125 mm) |
| Sanding Stroke | 9/64 in. (3.5 mm) |
| Dust Port Diameter | 1-1/16 in. (27 mm) |
| Drive Type | Battery |
| Weight (lbs) | 2.65 lbs |
Compatibility
Battery PlatformWorks with Festool 18V cordless batteries and chargers. App ConnectivityBluetooth support allows lighting adjustments through the Festool App. Dust ExtractionIncludes a dust bag for hose-free sanding and also supports extraction through a 27 mm dust connection.
Built For
Cabinetry Finish Carpentry Furniture Making Door and Frame Sanding Remodeling Woodworking Surface Prep Overhead Sanding
Pro Tip
Use the LED ring as an inspection light after your final pass, especially on paint-grade doors and cabinet parts. It is a quick way to catch swirl marks or low spots before you move to primer or topcoat.
Tool Nut’s Take
Tool Nut’s Take
Festool ETSC 2 125 4.0 I-Plus Cordless Random Orbit Sander Kit is built for finish guys who actually care what the surface looks like
This is the kind of cordless sander that makes sense when final surface quality matters more than brute stock removal.
- Who it’s for: Finish carpenters, cabinet installers, furniture builders, painters doing prep, and serious DIY users working on doors, trim, panels, and fine wood surfaces.
- Why it stands out: The LED light ring is the big differentiator, and the low-profile one-hand design makes it easier to control than bulkier cordless sanders in awkward positions.
- Worth knowing: This is a finish-oriented random orbit sander, not a heavy material hog. The upside is better control, cleaner inspection, and a more refined result where it counts.
Common Questions
- Is this a cordless or corded sander? It is a cordless battery-powered sander that runs on Festool 18V batteries.
- What size sanding discs does it use? It uses a 5 inch (125 mm) sanding pad.
- Can it be used without a dust extractor? Yes. It includes a dust bag for hose-free sanding, and it can also connect to extraction through a 27 mm dust port.
- What speed range does it offer? The eccentric motion speed ranges from 6,000 to 10,000 RPM.
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