Festool 491068 Dowel Drill Router Bit, HW 8X30mm is a carbide dowel drill router bit built for accurate hole drilling and hole series work in wood. This is a dowel drill router bit designed for drilling 8 mm dowel holes and repeatable hole patterns with a compatible plunge router. Model Number: 491068. If you do cabinet work, furniture assembly, or any project where hole spacing and clean starts matter, this bit is built for that kind of precision work.

The big story here is control. Festool calls out this bit as optimized for high cutting speeds when routing, which matters because a router spins much faster than a traditional drill. The cutting geometry is made for that environment, so you are not forcing a standard drill bit into a job it was not designed to do. The 8 mm diameter is the key size for dowel joinery, and the 30 mm working length gives you enough reach for common dowel and line-boring style tasks without going overly long and giving up stability.

The brad point is another detail that earns its keep. On dowel drilling and shelf-pin style layout work, wandering at the start ruins alignment fast. A brad point helps the bit start where you place it, which means cleaner entry and better repeatability across a series of holes. That is especially useful when you are matching parts or building assemblies that depend on consistent spacing from piece to piece.

Festool also keeps the sizing straightforward. This bit has an 8 mm shank and an overall length of 53.5 mm, making it a purpose-built accessory rather than a general-use compromise. For woodworkers using a router table, guide rail setup, or plunge router with layout jigs, that dedicated design is the point. You get a bit intended for routing-based hole making, not just general boring.

Compatibility is clear and important here. Festool lists this bit for the OF 900, OF 1000, OF 1010, OF 1010 R, and OF 1400 routers. If you already run one of those platforms, this accessory makes sense as a way to expand what your router can handle, especially for dowel joinery, cabinet drilling, and precise hole series work. That direct router fit matters because it keeps the setup inside the Festool system rather than mixing in accessories that may not be tuned for the tool.

Who should buy it? Woodworkers, cabinet installers, finish carpenters, and serious DIY users who need accurate dowel holes with a router-based workflow. If your work leans toward repeatability, cleaner starts, and controlled drilling in wood, the Festool 491068 Dowel Drill Router Bit, HW 8X30mm is a smart specialty bit. It is not a catch-all router bit. It is a focused solution for users who know they need 8 mm dowel drilling performance and want a bit built for that exact job.

Festool 491068 Dowel Drill Router Bit, HW 8X30mm is a niche bit for people who care about hole accuracy

This is the kind of accessory that makes sense the minute your work depends on clean 8 mm dowel holes and repeatable placement instead of general-purpose drilling.

• Who it's for: Woodworkers, cabinet guys, and detail-focused DIY users running compatible Festool OF routers.
• Why it stands out: It is built specifically for high-speed router use, has a brad point for cleaner starts, and targets dowel and hole series work instead of trying to do everything.
• Worth knowing: This is a single-purpose bit, which is exactly why it is useful. Buy it when you need 8 mm dowel drilling performance, not as a general router bit substitute.

• What size holes does this bit cut? It cuts 8 mm holes, listed as 5/16 in. in the technical data.
• What is the cutting length? The working length is 30 mm, which Festool lists as 1-3/16 in.
• Which Festool routers is it suitable for? Festool lists compatibility with the OF 900, OF 1000, OF 1010, OF 1010 R, and OF 1400.
• What type of point does it use? It uses a brad point for more accurate starts in dowel and hole series drilling.