The Festool 491065 Dowel Drill Router Bit, Hw 3X16mm is a carbide-tipped dowel drill router bit made for precise small-diameter hole drilling in wood. This is a router bit designed for dowel joinery and hole-series routing. Model Number 491065. If you are setting up for cabinet work, shelf-pin layouts, or other repeat-hole operations where consistency matters, this bit is built for that kind of controlled, high-speed routing setup.

What matters here is the combination of a 3 mm cutting diameter, 16 mm cutting length, and 55 mm overall length. That gives you a small, exact hole size with enough usable length for clean drilling in typical woodworking tasks without stepping up to a longer, less rigid cutter than the job needs. The 8 mm shank is sized for compatible Festool routers, which helps keep the bit stable in the collet during repeat work.

Festool lists this bit as optimized for high cutting speeds when routing, and that is the real reason this type of cutter exists. It is not just about making a hole. It is about making the same hole again and again with good edge quality when the router is doing the work. The carbide cutting edge is there for durability and cleaner performance over a longer run, especially when you are drilling many holes in a row for dowels or hardware layouts.

This bit is also specified without a brad point. In practical terms, that makes sense for router-based hole making where the machine, guide, and workholding are doing the positioning. You are relying on the router setup and the jig or fence system for placement, not hand pressure like you would with a standard drill bit. That makes it a better fit for controlled routing operations rather than freehand drilling.

Compatibility is a big part of the value here. Festool lists this dowel drill bit as suitable for the OF 900, OF 1000, OF 1010, OF 1010 R, and OF 1400 routers. It is also called out for high-precision diameters for dowel joints with the VS 600 DS 32 system in supplementary product data. If you already work inside the Festool router platform, this bit makes a lot more sense than trying to adapt a general-purpose cutter to a joinery setup that demands repeatability.

This is best for woodworkers, cabinet installers, finish carpenters, and serious DIY users who care about exact hole size and clean router-based joinery. If you need a general rough drilling bit, this is not that. If you need a purpose-built Festool router bit for accurate dowel drilling, shelf-hole work, or repeat hole patterns in wood, this is the right kind of accessory to keep in the case.

Festool 491065 Dowel Drill Router Bit, Hw 3X16mm for Clean, Repeatable Joinery

This is a purpose-built small-hole router bit for guys who care more about repeatable accuracy than making do with a general-use cutter.

• Who it's for: Woodworkers, cabinet installers, and finish carpenters using compatible Festool routers for dowel joints or hole-series work.
• Why it stands out: The 3 mm diameter, carbide tip, and router-speed design make it a better fit for precision joinery than a basic drill bit adapted to the job.
• Worth knowing: This is a specialized accessory. You need a compatible Festool router and the correct 8 mm setup to get the benefit out of it.

• What type of tool is this? This is a dowel drill router bit designed for precise hole drilling and dowel joinery in wood.
• What routers is it compatible with? Festool lists it as suitable for the OF 900, OF 1000, OF 1010, OF 1010 R, and OF 1400.
• What size hole does it cut? The cutting diameter is 3 mm, or about 1/8 inch.
• What is the shank size? The bit uses an 8 mm shank.
• What is the cutting material? Supplementary product data lists the bit as carbide, and Amazon specifically describes it as tungsten carbide tipped.