The Festool Cordless 18V ETSC 2 150mm (6-in.) Sander Kit w/ 60-Piece GRANAT Abrasive Starter Pack is a cordless random orbit sander kit built for finish sanding, surface prep, and detail work where cord-free movement actually matters. This is a cordless sander designed for finish sanding on wood and painted surfaces. Model number 577728-578166 pairs the ETSC 2 150 sander with Festool 18V power and a 60-piece GRANAT abrasive assortment, giving you a ready-to-work setup for shop work, punch lists, trim, cabinetry, and jobsite touchups.

What makes this sander stand out is the built-in LED light ring. That is not a gimmick on a finish tool. It lets you see sanding marks, surface imperfections, and transitions while you are still working instead of after stain, paint, or topcoat makes the problem obvious. Festool also gives you two onboard light modes, full and dimmed, and the light can be adjusted further through the Festool app. If your work depends on catching flaws before the next step, that feature alone earns its keep.

The ETSC 2 150 is shaped for control, not just power. Festool kept the tool low so your hand sits close to the work surface, which makes it easier to guide the sander across edges, rails, face frames, and other parts that punish bulky sanders. That matters in real use because better control usually means flatter sanding, fewer tip marks, and less fatigue when you are working overhead or on vertical surfaces. The one-handed format also helps in tight spots where a larger two-hand sander feels clumsy.

Under the hood, Festool uses a brushless EC-TEC motor. In practical terms, that means efficient power delivery, lower maintenance, and quieter operation than older brushed designs. The carbide-tipped sanding pad brake is another smart piece of the package. It keeps the pad from overspinning at idle, so you can set the tool on the work more confidently without scuffing the surface right at startup. On finish work, that kind of control saves time because it cuts down on the little mistakes that turn into extra passes.

Festool also built this kit around jobsite comfort. Vibration protection helps reduce hand fatigue during longer sanding sessions, which matters whether you are flattening filler, smoothing primer, or dialing in a final pass before finish. The included GRANAT abrasive starter pack covers grit steps from coarse to fine, with discs in 60, 80, 120, 180, 220, and 320 grit. That gives you a practical spread for everything from stock removal and surface leveling to prep for paint or clear finish. Festool notes that the hole pattern is designed to resist clogging and support virtually dust-free sanding when paired correctly.

This kit runs on Festool's 18V cordless system and uses a 4.0 Ah battery platform that is compatible with other Festool 18V cordless machines and battery chargers. If you are already on the Festool platform, that is a real advantage because batteries can move from tool to tool instead of sitting in one dedicated kit. If you are not on the platform yet, this is the kind of finish tool that can justify the jump because it solves a real problem: getting top-tier sanding control without being tied to a cord.

Who is it for? Cabinet installers, trim carpenters, remodelers, finish painters, furniture builders, and serious DIY users will get the most out of it. If your work depends on surface quality and you are tired of dragging cords, setting up lights, or cleaning up avoidable swirl marks, the Festool Cordless 18V ETSC 2 150mm (6-in.) Sander Kit makes a strong case for itself. It is not aimed at rough carpentry. It is aimed at people who care what the surface looks like when the job is done.

Festool Cordless 18V ETSC 2 150mm (6-in.) Sander Kit Is Built for Finish Guys Who Notice Everything

This is the kind of sander you buy when surface quality matters enough that rework costs more than the tool.

• Who it's for: Finish carpenters, cabinet installers, painters, remodelers, and woodworkers who need a cordless finish sander that stays controlled on edges, verticals, and tight spaces.
• Why it stands out: The LED light ring is the real differentiator here, backed up by the low-profile body, brushless EC-TEC motor, and pad brake that helps prevent startup scratches.
• Worth knowing: This is a finish-first tool, not a brute-force stock removal machine. If you want mobility, visibility, and a cleaner sanding process, it makes a lot of sense.

• What type of sander is this? It is a cordless eccentric sander, also commonly referred to as a cordless random orbit sander, designed for finish sanding and surface preparation.
• What size sanding discs does it use? It is built around a 150 mm, or 6-inch, sanding format and includes a D150 GRANAT abrasive starter set.
• Does it work with Festool 18V batteries and chargers? Yes. Festool states that the 4.0 Ah battery is compatible with Festool 18V cordless machines and battery chargers.
• Can the light be adjusted? Yes. The tool has full and dimmed light modes on the machine, and the Festool app allows more customized light adjustment.