Festool 492601 Guide Stop Adapter for OF 1400 Router & FS Rails – Precise Alignment

Boost the versatility of your Festool router and guide rail system

The Festool 492601 Guide Stop Adapter enables pairing the OF 1400 router with the FS guide rails for guided, straight routing with minimal setup. Its fine-adjustment controls let you dial the cut distance in increments of 1/10 mm, giving you precise control over each pass. The included support foot sits flat against the guide rail surface, helping stabilize the router for smoother, more predictable results.

Practical use cases range from cabinetry edge routing to shallow grooves and dado work where straight, repeatable passes matter. The Guide Stop attaches quickly to the OF 1400 using two rods and features two knobs that double as handles, letting you guide the router with confidence along the FS guide rails. Built in Germany, this accessory reflects Festool's engineering focus on reliability and consistent performance in demanding work environments.

Key benefits at a glance

• Precise alignment along FS guide rails for consistent, straight routing
• Fine adjustment in 0.1 mm steps to fine-tune cut distance
• Sturdy leveling foot that keeps the router plane even with the rail

• Fast setup with two included rods for secure attachment
• Two control knobs serve as practical handles to guide the router

Real-world workflow improvements

In real work settings, the Guide Stop helps maintain straight lines across long routes, supports clean starts and finishes, and reduces drift on stock. It is designed to integrate with Festool's rail ecosystem, so you can pair it with compatible guides for repeatable offsets and reliable performance. While results depend on technique and material, the system offers a proven path toward more controlled routing operations.

Quality you can count on

Made in Germany, the Guide Stop embodies Festool's attention to detail and durable craftsmanship, delivering a tool accessory that holds alignment over time and supports steady, confident operation in busy workshops.

Setup and compatibility tips

• Check compatibility: OF 1400 works with FS guide rails when using the Guide Stop adapter
• Mount with the two rods and secure with the two knobs; ensure the foot sits flush against the rail
• Practice on scrap stock to confirm 0.1 mm steps translate to the desired offsets

With FS rails, the Guide Stop helps you maintain controlled paths through longer runs, improving repeatability across multiple pieces. The 0.1 mm step increments let you refine cut depth or offset with a light touch, supporting a more precise workflow without overpromising results.