The Festool 494460 8 mm Clamping Collet with Nut is a router collet designed for holding 8 mm router bit shanks in compatible Festool routers. Model Number 494460. This is a collet designed for secure router bit clamping and accurate routing performance. If you run an OF 1400, OF 2000, or OF 2200 and need the correct 5/16" (8 mm) setup, this is the part that matters between the motor and the bit.

What makes a good collet worth buying is simple: it needs to grip the bit consistently, center it properly, and let go without a fight when it is time to change cutters. Festool calls out faster and easier bit changes with one wrench, along with reduced bit slipping. That matters in real use because a slipping bit ruins cut quality, slows the job down, and can force you to reset depth or recut material.

This Festool router accessory is also built to maintain the bit center line for higher precision cuts over the life of the collet. That is the practical advantage here. On edge profiles, dado work, template routing, and repeat passes, better centering helps the cut stay predictable instead of wandering because the bit is not seated as cleanly as it should be.

The collet is made for router shanks up to 5/16" (8 mm), listed as 5/16 inch, and uses a 24 mm open-ended spanner width. Festool also notes a dustproof clamping collet design. For anyone routing in real-world shop dust or jobsite debris, that is not a throwaway detail. Keeping the clamping area working properly helps preserve grip and repeatable performance.

Compatibility is the other big reason to buy the right collet instead of trying to make something else work. This accessory is specifically suited for the Festool OF 1400, OF 2000, and OF 2200 routers. If your router is on that list and your bit has an 8 mm shank, this is the clean solution. No adapters, no guesswork, no compromise on fit.

Who should buy it? Woodworkers, cabinet installers, trim carpenters, and serious router users who already own one of the supported Festool routers and want proper support for 8 mm bits. The Festool 494460 8 mm Clamping Collet with Nut is not a flashy accessory, but it is the kind of part that directly affects cut accuracy, setup speed, and day-to-day confidence in the tool.

Festool 494460 8 mm Clamping Collet with Nut Keeps the Router Honest

This is the kind of accessory that does not get much attention until you need clean, repeatable routing and realize the collet is doing a lot of the work.

• Who it's for: Festool router owners running the OF 1400, OF 2000, or OF 2200 who want proper support for 8 mm router bits.
• Why it stands out: It is built to reduce bit slipping, hold center line better, and make bit changes faster with one wrench.
• Worth knowing: This is a specific-fit router accessory, so it is only the right buy if your router model and bit shank size match.

• What type of tool is this? This is a router clamping collet with nut for holding 8 mm router bit shanks in compatible Festool routers.
• Which routers does it fit? It is compatible with the Festool OF 1400, OF 2000, and OF 2200.
• What wrench size does it use? The listed open-ended spanner width is 24 mm.
• What is the main advantage of this collet? Festool states it allows faster one-wrench bit changes, reduces bit slipping, and helps maintain the bit center line for more precise cuts.