Festool 491077 Euro-hinge boring Router Bit HW 35mm is a hinge location cutter made for boring standard concealed hinge cup holes in cabinet doors and similar woodworking parts. This is a router bit designed for hinge boring and cabinet hardware installation. Model Number: 491077. If you build cabinets, hang doors, or do hardware installs where clean 35 mm hinge recesses matter, this bit is built for that one job.

The key spec here is the 35 mm cutting diameter. That size matches common Euro-style hinge cup requirements, so you are not trying to make a general-purpose bit do specialty work. When the bore size is right from the start, hinge fit is more predictable and cleanup is reduced.

Festool lists this cutter with HW carbide blades. That matters because hinge boring puts a lot of load on the cutting edges, especially when you are working through batches of cabinet doors or dense panel stock. Carbide helps the edge stay usable longer and supports cleaner boring performance over repeated use.

The bit uses an 8 mm shank and has an overall length of 2-1/8 in. (54.5 mm). In practical terms, that gives you a purpose-built router accessory with dimensions matched to the intended task rather than an oversized cutter that is awkward to control. For precise hardware work, that kind of sizing matters.

Compatibility is another big part of the value. Festool specifies this hinge location cutter for the OF 900, OF 1000, OF 1010, OF 1010 R, OF 1400, OF 2000, and OF 2200. If you are already on the Festool router platform, that saves guesswork. You can match the bit to approved routers and get on with the job instead of sorting through questionable fitment.

This router bit makes the most sense for cabinetmakers, finish carpenters, installers, and serious woodworkers who regularly fit concealed hinges. It is not an all-purpose plunge bit, and that is the point. It is a dedicated boring bit for one of the most common cabinet hardware tasks, which is exactly why it earns its keep in a shop that values repeatable results.

Festool 491077 Euro-hinge boring Router Bit HW 35mm for clean cabinet hardware work

This is a purpose-built bit for a very common cabinet job, and that is exactly why it makes sense.

• Who it's for: Cabinet shops, installers, finish carpenters, and woodworkers who regularly bore 35 mm concealed hinge cups.
• Why it stands out: It is sized for the standard Euro-hinge application, uses carbide cutting edges, and fits a broad range of Festool routers.
• Worth knowing: This is a specialty router bit, not a general routing accessory. If hinge boring is part of your regular workflow, it is the right tool. If not, it may be more specialized than you need.

• What is this bit designed to do? It is a hinge location cutter made to bore 35 mm Euro-style concealed hinge cup holes.
• What shank size does it use? It uses an 8 mm shank.
• Which Festool routers is it suitable for? Festool lists OF 900, OF 1000, OF 1010, OF 1010 R, OF 1400, OF 2000, and OF 2200.
• What is the overall length? The overall length is 2-1/8 in. (54.5 mm).