The Festool KS 120 REB Kapex Sliding Compound Miter Saw with Universal & Fine Tooth Kapex Blade Set is a professional sliding compound miter saw package built for finish carpentry, trim installation, and accurate crosscutting on the jobsite or in the shop. This is a sliding compound miter saw designed for precision cutting in trim, molding, sheet goods, and wood framing tasks that demand clean results. Model Number 575306-203150 combines the KS 120 REB Kapex saw with additional Kapex blades so you can get to work with both general-purpose and finer-finish cutting options.

What makes this saw matter is not just raw capacity, but how much control it gives you while chasing tight miters and clean joints. Festool pairs a twin-column guide with dual-line lasers, front-facing controls, and fine bevel adjustment accurate to the millimeter. On real trim work, that means less time creeping up on a cut, less material wasted, and fewer surprises when you bring two pieces together at an inside or outside corner. The included MiterFast Angle Transfer Device backs that up by letting you move tricky site-measured angles straight to the saw more quickly.

The rail-forward design is one of the big reasons contractors buy a Kapex. Traditional sliding miter saws need rear clearance because the rails travel behind the saw. Here, the motor head slides forward on fixed rails, so the footprint stays compact and the saw can sit closer to a wall. If you work in finished homes, hallways, punch-list spaces, or crowded shops, that detail is not small. It directly affects where you can set up and how much room you need to work safely and efficiently.

Festool also built this saw around precision and portability instead of brute size. The cast magnesium base keeps the structure rigid while helping hold weight to about 47.3 lbs for the saw itself, making it easier to move than many saws with comparable cutting performance. The special cutting position gives the KS 120 REB vertical cutting capacity up to 120 mm, and the saw can cut crown molding in a nested position up to 6-5/8 inches. That gives trim carpenters serious capacity without dragging around a larger, bulkier platform than necessary.

Dust collection is another strong point, and it is one of the reasons this saw stands out in finish environments. Festool states up to 91% dust extraction efficiency with a 36 mm hose. Combined with the extraction system, chip deflector funnel, clear narrow guard, and locking dust port, the saw is set up to pull chips from where they are created instead of blasting them all over a finished room. For remodelers and interior trim crews, that translates into less cleanup, better visibility at the cut, and less mess around homeowners.

Day-to-day usability is handled well too. The FastFix blade change system lets you lock the arbor and mechanically lock out the trigger so blade changes are quicker and more controlled. Variable speed preselection, smooth start-up, overload protection, and an integrated quick-acting brake help the saw adapt to different materials and working conditions. Festool also gave it ergonomic grips for left-handed and right-handed users, plus transport-friendly details like a cord holder and transport safety device.

This set matters because it is more than a bare saw listing. In addition to the installed 60-tooth universal blade, the package includes the 203150 Universal and Fine Tooth Kapex Blade Set with both a 260 mm 80-tooth blade and a 260 mm 60-tooth blade. The 80-tooth blade is aimed at smoother cuts in veneered plywood, sheet goods, melamine, and hardwood or softwood crosscuts. The 60-tooth blade covers clean general-purpose cutting in wood and soft plastics. Both blades use a 30 mm arbor and 2.5 mm kerf, which helps reduce resistance and supports accurate cutting.

If you are a trim carpenter, cabinet installer, remodeler, finish contractor, or serious woodworker who cares more about cut quality, repeatability, and dust control than sheer bulk, this package makes a lot of sense. It is not the bargain-option miter saw. It is the one you buy when setup time, precision, cleaner work areas, and reliable finish-cut performance actually affect how your work turns out and how fast you can move.

Festool KS 120 REB Kapex Sliding Compound Miter Saw with the right extras already in the box

The Festool KS 120 REB Kapex Sliding Compound Miter Saw with Universal & Fine Tooth Kapex Blade Set is for buyers who care about cleaner cuts, cleaner jobsites, and a miter saw that wastes less of their time.

• Who it's for: Trim carpenters, remodelers, cabinet installers, and woodworkers who need accurate miters, bevels, and repeatable finish cuts.
• Why it stands out: The rail-forward layout, excellent dust collection, dual lasers, and front controls make it one of the smartest miter saw designs for tight workspaces and finish-level work.
• Worth knowing: This is a premium saw package, but the included blade set and angle transfer tool make the buy easier to justify if you actually use your miter saw for detailed work instead of rough chopping all day.

• What kind of saw is this? This is a sliding compound miter saw designed for precision crosscuts, miters, bevel cuts, and trim work.
• Can it be set up close to a wall? Yes. The Kapex uses a rail-forward design, so it does not need the same rear clearance as many traditional sliding miter saws.
• Does it support dust extraction? Yes. Festool states up to 91% dust extraction efficiency when the saw is connected to a 36 mm hose.
• What blades does this set include? The package includes a 60-tooth universal blade for the saw plus a blade set with one 260 mm 80-tooth blade and one 260 mm 60-tooth blade, both with a 30 mm arbor and 2.5 mm kerf.