The Festool 577173 KSC 60 Miter Saw Replacement Dust Bag SB-KSC is a replacement dust collection accessory made for the Festool KSC 60 cordless sliding compound miter saw. This is a dust collection bag designed for chip collection without an extractor. Model Number 577173. If you use your saw where dragging a dust hose is more trouble than it's worth, this accessory gives you a cleaner way to work while keeping the saw easy to move.

Its job is straightforward: catch dust and chips where they leave the saw. That matters on punch-list work, trim installs, remodeling, and any setup where you're cutting indoors or bouncing from room to room. Festool's own product details call out reduced dust even without a mobile extractor connected, so this is not just a storage sack on the back of the saw. It is part of keeping the work area under control when you want the speed of a cordless miter saw setup.

The practical part is how little friction it adds to the job. The bag attaches quickly with a strong connection, so you're not wasting time with awkward straps or a loose fit. When it's full, you empty it with the zipper and get back to work. Simple features like that are what make an accessory worth owning, because if it's annoying to install or empty, most guys stop using it.

Another real advantage is mobility. Festool specifically notes that the SB-KSC does not restrict the compact, portable nature of the KSC 60. That's a big deal if you're working on scaffolding, carrying the saw through a renovation site, or setting up in finished spaces where a hose and extractor can be one more thing to manage. You get cleaner cuts with less mess, but you still keep the grab-and-go benefit of the saw.

This accessory is intended for wood cutting applications and is listed for use with all woods. That makes it a good fit for finish carpenters, installers, remodelers, and general contractors using the KSC 60 for trim, casing, molding, and jobsite crosscuts. It is not a universal dust bag for every saw. It is a purpose-built Festool accessory for the KSC 60 platform, which is exactly what you want when fit and connection matter.

If you already own the KSC 60 and want a cleaner cordless miter saw setup without always connecting an extractor, this is the right add-on. If you do most of your cutting tied into dust extraction already, it is still a useful backup for quick cuts, mobile work, or spaces where running a hose is inconvenient.

Festool 577173 KSC 60 Miter Saw Replacement Dust Bag SB-KSC makes the cordless saw setup make more sense

If you bought a KSC 60 for mobility, this is the accessory that helps you keep that advantage while cutting down the mess.

• Who it's for: KSC 60 owners doing trim, punch work, remodeling, and other jobs where hauling an extractor around for every cut is overkill.
• Why it stands out: It is purpose-built for the saw, installs fast, reduces dust at the source, and empties with a zipper instead of making cleanup a second project.
• Worth knowing: This is a KSC 60-specific accessory, not a universal dust bag, so buy it when fit and portability matter more than running a full extractor setup all day.

• What saw is this dust bag made for? It is designed for the Festool KSC 60 cordless sliding compound miter saw.
• Can it be used without a dust extractor? Yes. The SB-KSC is specifically intended to collect chips and dust even when no extractor is connected.
• How do you empty the bag? Festool specifies a zipper opening, which makes emptying straightforward.
• What materials is it intended for? Festool lists it for use with all woods.