Festool 578544 Domino Joiner DF 500 RQ Set is a corded joiner built for fast, accurate loose-tenon joinery in furniture, cabinet, trim, and solid wood work. This is a joiner designed for cutting elongated mortises for DOMINO tenons. Model Number 578544. If you want mortise-and-tenon strength without dragging big stationary machinery into the process, this is the tool that makes that job portable, repeatable, and much quicker.

The big reason people buy a DOMINO joiner is simple: it cuts strong, consistent joints with less setup than traditional mortising methods. Festool uses a unique pendulum milling action to cut smooth mortises, and the built-in indexing system helps you place those mortises accurately from a reference edge or an existing mortise. On real work, that means fewer layout marks, fewer test cuts, and less time spent sneaking up on alignment.

This DF 500 RQ handles a wide range of work because it accepts DOMINO cutters from 4 mm through 10 mm and works with tenon sizes from 4 x 20 mm to 10 x 50 mm. It also supports thin stock down to 12 mm, which is a big deal for drawer parts, narrow frames, and detail work where a larger joiner would be overkill. At the same time, it has enough capacity for solid frame construction, panel joinery, miter joints, and heavier furniture assemblies.

Festool also gave the machine the adjustment points that matter. The pivoting fence handles miters from 0 to 90 degrees, with positive stops called out at 22.5, 45, and 67.5 degrees in the supplemental product data. Routing height adjustment runs from 5 mm to 30 mm, and the depth stop is preset at 12, 15, 20, 25, and 28 mm. In plain terms, you can match the cutter, tenon, and stock thickness without turning setup into a project of its own.

At 420 watts and 25,500 RPM no-load speed, the Festool 578544 Domino Joiner DF 500 RQ Set is not about brute force for the sake of it. It is tuned for controlled, precise cutting in wood and panel materials. The 7.72 lb weight keeps it portable enough for bench work, onsite fitting, and assembly tasks, while the 4 m plug-it power cord gives you room to move without constantly reaching for an extension.

Dust control is another practical advantage. The 27 mm dust extraction port helps keep the mortise clear as you cut, which improves visibility and helps the cutter work cleanly. If you already run Festool dust extraction, this tool fits naturally into that workflow. Cleaner cuts, clearer sightlines, and less debris around your layout lines all add up to better accuracy, especially when you are batching parts.

This set version is also ready to get to work out of the box. You get the 5 mm DOMINO cutter, support bracket, trim stop, cross stop, open ended spanner, plug-it power cord, and a Systainer3 SYS3 M 187. That matters because the stops are part of what makes the DF 500 fast in the real world. They help reduce guesswork on repeated parts and thin stock, which is exactly where a joinery machine should be saving you time.

Who should buy it? Woodworkers, cabinet installers, furniture builders, trim carpenters, and serious DIY users who want stronger joints and faster setup than biscuits, dowels, or improvised slot cutting methods. If your work involves face frames, doors, drawer boxes, panel glue-ups, miters, or solid wood assemblies, the DF 500 RQ earns its keep quickly. If you only do occasional edge joining, it may be more machine than you need. But if joinery is a regular part of your work, this is one of the most efficient portable systems out there.

Festool 578544 Domino Joiner DF 500 RQ Set Is the Shortcut to Better Joinery

If joinery is part of your regular workflow, this machine cuts a lot of setup time without giving up the strength and accuracy you actually care about.

• Who it's for: Furniture builders, cabinet guys, trim carpenters, and woodworkers who want clean loose-tenon joinery without committing every job to stationary mortising equipment.
• Why it stands out: The combination of pendulum cutting action, indexing pins, angle adjustment, and broad cutter range makes it one of the fastest ways to produce repeatable mortises in real workpieces.
• Worth knowing: This is a system tool. It shines most when you take advantage of the DOMINO cutters, tenons, stops, and dust extraction setup it was designed around.

• What kind of tool is this? This is a corded DOMINO joiner for cutting elongated mortises used with loose DOMINO tenons.
• What cutter sizes does it support? It supports DOMINO slot cutter diameters of 4 mm, 5 mm, 6 mm, 8 mm, and 10 mm.
• Can it cut angled mortises? Yes. The pivoting fence allows miter routing from 0 to 90 degrees.
• Will it work on thin material? Yes. Festool lists it for workpieces as thin as 12 mm.
• Does it support dust collection? Yes. It has a 27 mm dust extraction connection.