The Festool 494463 1/4 in. Clamping Collet with Nut is a router collet made for holding 1/4 inch router bits in select Festool routers. This is a clamping collet designed for secure router bit holding and more accurate routing. Model Number 494463. If you run an OF 1400, OF 2000, or OF 2200 and want the correct 1/4" (6.35 mm) collet setup for smaller shank bits, this is the part that gets you there.

What matters here is not just fit, but cut quality. Festool calls out reduced bit slipping and better center line retention over the life of the collet. In plain terms, that means the bit stays clamped more securely and runs truer, which helps when you are doing edge profiles, dado work, template routing, or any job where a small amount of movement shows up in the finished cut.

Bit changes are also quicker with the one-wrench setup. That is a real convenience when you are switching between straight bits, round-over bits, or flush trim bits during a job. Less time changing cutters means less interruption, especially if the router is already set up in a table or dialed in for repeat work.

This Festool collet is a dustproof clamping style and uses a 24 mm open-ended spanner width. It is rated for up to 22,500 RPM, so it is built to work within the operating range expected from compatible Festool routers. For users who care about clean, repeatable routing, a good collet is not a throwaway accessory. It is one of the parts that directly affects how stable the bit feels in the cut.

The best fit for this accessory is the woodworker, finish carpenter, cabinet installer, or serious DIY user already working in the Festool router platform. If you need to run 1/4 inch shank router bits in your OF-series router and want the proper factory-fit collet and nut, this is the right buy. It is a small part, but it has a direct impact on accuracy, bit security, and day-to-day ease of use.

Festool 494463 1/4 in. Clamping Collet with Nut is the right fix for accurate small-bit routing

If you are running 1/4 inch router bits in a compatible Festool router, this is the factory-fit accessory that keeps the setup secure and the cut honest.

• Who it's for: Festool router users doing trim work, cabinet work, edge details, and template routing with 1/4 inch shank bits.
• Why it stands out: It is built to reduce slipping, hold center line better over time, and make bit changes faster with a one-wrench setup.
• Worth knowing: This is a router-specific accessory, not a universal collet. Make sure you are matching it to the OF 1400, OF 2000, or OF 2200 before you order.

• What routers does this collet fit? It is designed for the Festool OF 1400, OF 2000, and OF 2200 routers.
• What bit shank size does it hold? It holds 1/4" (6.35 mm) router bit shanks.
• Does this help prevent bit slipping? Yes. Festool states that it dramatically reduces bit slipping and helps maintain center line for higher precision cuts.
• What wrench size is used with this collet? It uses a 24 mm open-ended spanner width.