UJK Festool guide rail dogs are supplied in pairs, made of stainless steel, with a T-bolt that fits into the T-slot on the underside of Festool, Triton, and Milwaukee guide rails. Unlike rail clips that attach to the side of the rail, these dogs sit under the rail, eliminating the risk of accidental cutting over the 20mm holes of the multifunction table. Laser-etched scale from 0 to 75mm for height adjustment based on material thickness. Supplied with 2 segmented aluminum support collars. Compatible with Festool MFT/3 tables and all grid tables with 20mm holes. Made in Great Britain. Distributed in Italy by Krollit, official UJK distributor since 2007.
- Diameter: 20 mm
- Rail fastening: T-bolt in the guide rail T-slot
- Graduated scale: 0–75 mm laser-etched on the dog's side
- Support collars: 2 segmented aluminum collars included
- Material: Stainless steel
- Compatible rails: Festool, Triton, Milwaukee
- Supply: Pair (2 dogs)
- Table compatibility: Festool MFT/3, UJK multifunction tables, 20×96 mm grid tables
- Origin: Great Britain
Who uses UJK Festool guide rail dogs and for what purpose
UJK guide rail dogs are used by carpenters and woodworkers who operate with track saws on multifunction tables and require a more stable rail fastening than traditional rail clips. In Italy, they are particularly adopted by those who perform repeated cross-cuts on panels of the same height and want to avoid realigning the rail with each operation, those who use routers with guide rails on MFT tables where high vibrations make clips insufficient, and professionals working on construction sites with portable cutting stations where the rail must not move during cutting. The 0 to 75 mm graduated scale allows setting the height of the support collar according to the exact thickness of the material to be cut, making repeated operations on materials of the same thickness significantly faster.
Krollit Logistics and Support
Shipping 3–5 business days from Krollit warehouse, Monteforte Irpino (AV). Technical assistance in Italian at +39 0825-1494022.
For whom are UJK Festool guide rail dogs
| Profile |
Compatibility |
Reason |
| Carpenter performing repeated cuts on materials of the same thickness with a track saw |
Suitable |
The 0–75 mm graduated scale allows setting the support collar once for a given thickness, eliminating rail realignment between cuts |
| Those using routers with guide rails on a multifunction table |
Suitable |
The fastening via T-bolt under the rail is more stable than side clips in the presence of high vibrations; the rail cannot move laterally during routing |
| Those working narrow pieces where the rail tends to oscillate |
Suitable |
The 2 included segmented aluminum support collars are placed on the dog and support the rail laterally, preventing oscillation on narrow materials |
| Those who own Makita guide rails |
Not indicated |
This version is compatible with the T-slot of Festool, Triton, and Milwaukee rails; a dedicated version with a different sized T-bolt is available for Makita rails |
Not suitable for: Makita guide rails, for which the dedicated UJK version with compatible T-bolt is available; and for tables with 20mm holes not aligned to a 96mm pitch.
Technical specifications
Fastening and scale
| Diameter |
20 mm |
| Rail fastening system |
T-bolt in the rail T-slot |
| Graduated scale |
0–75 mm laser-etched on the side |
| Knurling on the guide cone |
Yes, facilitates clamping the dog to the T-bolt |
| Support collars included |
2 segmented aluminum collars |
Material and compatibility
| Material |
Stainless steel |
| Compatible rails |
Festool, Triton, Milwaukee |
| Table compatibility |
Festool MFT/3, UJK multifunction tables, 20×96 mm grid tables |
| Supply |
Pair (2 dogs) |
| Country of manufacture |
Great Britain |
Comparison with UJK rail clips
| Parameter |
Guide rail dogs |
Rail clips |
When to choose dogs |
| Position relative to the rail |
Under the rail, hidden |
On the side of the rail, visible |
When flush cutting is required without interruptions |
| Risk of cutting on holes |
Eliminated |
Present if poorly positioned |
Always recommended with routers |
| Height adjustment |
0–75 mm scale for material thickness |
No adjustment |
Repeated cuts of the same thickness |
| Stability with vibrations |
High (T-bolt locked) |
Moderate (pressure clip) |
Routing and operations with vibrations |
| Support for narrow pieces |
Yes, with included segmented collars |
No |
Narrow materials prone to oscillation |
Frequently Asked Questions
What is the difference between UJK guide rail dogs and rail clips?
Rail clips attach to the side of the rail and surround the 20mm dogs; guide rail dogs fit under the rail via a T-bolt in the T-slot, hiding completely under the rail itself.
The main advantage of guide rail dogs is that the rail is never positioned over the 20mm holes of the table, eliminating the risk of accidental cutting on the holes. They are recommended for routing with a router, for repeated cuts of the same thickness thanks to the graduated scale, and for narrow materials thanks to the included support collars.
How is the 0 to 75 mm graduated scale used in practice?
The laser-etched scale on the side of the dog is used to measure the thickness of the material to be cut and to position the support collar at the correct height. Once the collar is set to the material measurement, the rail rests on the collars, ensuring stability even on narrow pieces.
This system allows repeated operations on materials of the same thickness without having to realign the rail: the support collar keeps the rail at the correct height with each positioning.
Are these dogs compatible with Makita guide rails?
No. This version is compatible with the T-slot of Festool, Triton, and Milwaukee rails. For Makita rails, the dedicated UJK version with a T-bolt compatible with the Makita slot is available separately.
Are the guide rail dogs compatible with the Festool MFT/3 table?
Yes. UJK guide rail dogs are compatible with the Festool MFT/3 table and all grid tables with 20mm holes with a 96mm pitch. They fit into the 20mm holes of the table, and the T-bolt attaches to the T-slot of the Festool rail positioned above.
What are the segmented aluminum collars included in the package for?
The 2 segmented aluminum collars are placed on the dog and support the rail laterally when the material to be cut is narrow. On narrow materials, the rail tends to oscillate because it is not sufficiently supported; the collars eliminate this oscillation by resting on the surface of the piece.
The collars are height-adjustable using the 0 to 75 mm graduated scale etched on the side of the dog, ensuring that the support is at the correct height for the specific material being worked on.
