UJK DeWalt 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 DeWalt guide rails. Unlike rail clips that attach to the side of the rail, these dogs position themselves under the rail, eliminating the risk of accidental cutting over the 20mm holes of the multifunction top. Laser-engraved scale from 0 to 75 mm for height adjustment according to material thickness. Supplied with 2 segmented aluminium support collars. Compatible with the Festool MFT/3 top and all grid tops 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 T-slot of the DeWalt guide rail
- Graduated scale: 0–75 mm laser engraved on the side of the dog
- Support collars: 2 segmented aluminium collars included
- Material: Stainless steel
- Compatible rails: DeWalt
- Supply: Pair (2 dogs)
- Table compatibility: Festool MFT/3, UJK multifunction tops, 20×96 mm grid tops
- Origin: Great Britain
Who uses UJK DeWalt guide rail dogs and what for
UJK DeWalt guide rail dogs are used by carpenters and woodworkers who operate with a DeWalt guide saw on a multifunction table and require 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 a router with a DeWalt guide rail on an MFT table where high vibrations make clips insufficient, and professionals who work on construction sites with portable cutting stations. The 0 to 75 mm graduated scale allows the height of the support collar to be set according to the exact material thickness, 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.
Who UJK DeWalt guide rail dogs are for
| Profile |
Compatibility |
Reason |
| Carpenter performing repeated cuts on materials of the same thickness with a DeWalt guide saw |
Suitable |
The 0 to 75 mm graduated scale allows the support collar to be set once and for all for a given thickness, eliminating rail realignment between cuts |
| Those using a router with a DeWalt guide rail on a multifunction table |
Suitable |
T-bolt fastening under the rail is more stable than side clips in the presence of high vibrations; the rail cannot move sideways during routing |
| Those working narrow pieces where the rail tends to wobble |
Suitable |
The 2 included segmented aluminium support collars are placed on the dog and support the rail laterally, preventing wobbling on narrow materials |
| Those owning Festool, Makita, Bosch, or Mafell guide rails |
Not recommended |
This version is compatible with the T-slot of DeWalt rails; dedicated UJK versions with different size T-bolts are available for other rails |
Not recommended for: Festool, Triton, Milwaukee, Makita, Bosch, and Mafell guide rails, for which dedicated UJK versions with compatible T-bolts are available; and for tables with 20 mm holes not aligned at a 96 mm pitch.
Technical specifications
Fastening and scale
| Diameter |
20 mm |
| Rail fastening system |
T-bolt in the T-slot of the DeWalt rail |
| Graduated scale |
0–75 mm laser engraved on the side |
| Knurling on the guide cone |
Yes, facilitates locking the dog to the T-bolt |
| Support collars included |
2 segmented aluminium collars |
Material and compatibility
| Material |
Stainless steel |
| Compatible rails |
DeWalt |
| Table compatibility |
Festool MFT/3, UJK multifunction tops, 20×96 mm grid tops |
| Supply |
Pair (2 dogs) |
| Country of manufacture |
Great Britain |
Available UJK guide rail dog versions
| Version |
Compatible rails |
Notes |
| Festool version |
Festool, Triton, Milwaukee |
Festool slot T-bolt |
| Makita version |
Makita |
Makita slot T-bolt |
| Bosch and Mafell version |
Bosch, Mafell |
Bosch/Mafell slot T-bolt |
| DeWalt version |
DeWalt |
DeWalt slot T-bolt |
Frequently asked questions
What is the difference between DeWalt dogs and other UJK versions?
The difference is exclusively in the T-bolt: each version has the bolt sized for the T-slot of the specific rail. The DeWalt version is not compatible with Festool, Makita, Bosch, or Mafell rails and vice versa.
Graduated scale, support collars, material, and operation are identical in all versions. Those owning multiple rail brands purchase the dedicated versions separately.
How is the 0 to 75 mm graduated scale used in practice?
The laser-engraved 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 the Festool MFT/3 table?
Yes. UJK DeWalt guide rail dogs fit into the 20 mm holes of the Festool MFT/3 table and all grid tables with a 96 mm pitch. Table compatibility concerns the 20 mm holes; rail compatibility concerns the T-slot, which in this case is the DeWalt one.
What are the segmented aluminium collars included in the package for?
The 2 segmented aluminium 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 wobble because it is not sufficiently supported; the collars eliminate this wobbling by resting on the surface of the workpiece.
The collars are height-adjustable using the 0 to 75 mm graduated scale engraved on the side of the dog, ensuring that the support is at the correct height for the specific material being processed.
What is the difference between these dogs and UJK rail clips?
Rail clips attach to the side of the rail and surround the 20 mm dogs; fastening dogs insert under the rail via a T-bolt in the T-slot, positioning themselves completely under the rail itself.
The main advantage of fastening dogs is that the rail is never positioned over the 20 mm holes of the table, eliminating the risk of accidental cutting on the holes. They are recommended for routing, for repeated cuts on the same thickness, and for narrow materials prone to rail wobbling.
