The UJK 20mm Parf system hole chamfering cutter is made of stainless steel with a tungsten carbide cutter and a 10mm hex shank for use with a handheld drill (recommended speed 1,400–1,700 rpm). It creates a precise, clean chamfer around 20mm multifunction table holes, allowing the use of UJK self-clamping dogs and all accessories with a chamfered stop collar. Suitable for MDF and HDF; slight chipping may occur on plywood with solid wood veneer. Made in Great Britain. Distributed in Italy by Krollit, official UJK distributor since 2007.
- Hole diameter: 20 mm
- Shank: 10 mm hex
- Recommended speed: 1,400–1,700 rpm
- Use: handheld drill only
- Cutter: tungsten carbide
- Body material: stainless steel
- Function: creates chamfer around 20mm holes for use with dogs with a chamfered stop collar
- Recommended materials: MDF, HDF, Valchromat
- Origin: Great Britain
Krollit Logistics and Support
Shipping 3–5 business days from Krollit warehouse, Monteforte Irpino (AV). Technical assistance in Italian at +39 0825-1494022.
Who is the UJK chamfering cutter for?
| Profile |
Compatibility |
Reason |
| Those who have built their own table with the Parf MkII drilling system and want to use dogs with a chamfered stop collar |
Suitable |
Self-built tables do not have the standard chamfer found on the Festool MFT/3 and UJK tables; the cutter creates the necessary chamfer for the correct functioning of the self-clamping dog's stop collar |
| Those who own a table with 20mm holes without a chamfer and want to add a self-clamping dog or reference dogs with a collar |
Suitable |
Without a chamfer, the stop collar has no support, and the dog does not guarantee 90° perpendicularity; a chamfer pass with the cutter solves the problem on every hole |
| Those who also need reaming to restore hole tolerance |
Not indicated |
This cutter only performs chamfering; for those who need both operations (chamfering + reaming), the UJK combined chamfering and reaming tool is available as a single tool |
Not suitable for: use with a drill press (handheld drill only); on plywood with hardwood veneer, where chipping may occur around the hole; and for reaming only without chamfering, for which the separate UJK reamer is available.
Technical specifications
| Hole diameter |
20 mm |
| Shank |
10 mm hex |
| Recommended speed |
1,400–1,700 rpm |
| Use |
Handheld drill only |
| Cutter |
Tungsten carbide |
| Body material |
Stainless steel |
| Recommended materials |
MDF, HDF, Valchromat |
| Materials not recommended |
Plywood with hardwood veneer |
| Country of manufacture |
Great Britain |
Comparison with the UJK combined chamfering and reaming tool
| Parameter |
Chamfering cutter only |
Combined chamfering and reaming tool |
When to choose the cutter only |
| Chamfering function |
Yes |
Yes |
Identical |
| Reaming function |
No |
Yes |
Those who only need chamfering on holes already at the correct tolerance |
| Cutter |
Tungsten carbide |
Tungsten carbide |
Identical |
| Cost |
Lower |
Higher |
Those who already have a separate reamer or do not need reaming |
Frequently asked questions
When is the chamfering cutter needed for 20mm holes?
The chamfering cutter is needed whenever you want to use dogs with a chamfered stop collar on a table with 20mm holes that lack a chamfer. Festool MFT/3 and UJK tables already have a standard chamfer; self-built tables with the Parf MkII drilling system do not, unless the chamfer is added after drilling.
The chamfer serves three purposes: it allows the dog's stop collar to rest, ensuring 90° perpendicularity, it allows the dog to sit flush with the table surface, and it reduces the risk of chipping around the hole edges with repeated use of the dogs.
Does the chamfering cutter also work on plywood?
The cutter works on plywood, but the manufacturer UJK indicates the possibility of slight chipping around the hole on plywood with solid wood veneer. On MDF, HDF, and Valchromat, the results are optimal without chipping.
For plywood with solid wood veneer, it is advisable to perform a test pass on a scrap piece of the same material before proceeding to the holes of the final table.
What is the difference between this cutter and the UJK combined chamfering and reaming tool?
The chamfering cutter only performs chamfering around the hole. The combined chamfering and reaming tool performs both operations in a single pass: first reaming to restore hole tolerance, then chamfering the edge.
The cutter alone is recommended for those who already have a separate UJK reamer or for those who need to add a chamfer to holes already at the correct tolerance. The combined tool is recommended for those starting from scratch or for those who need to systematically perform both operations on a new table.
Can the cutter be used with a drill press?
No. Like the UJK reamer, the chamfering cutter is designed for exclusive use with a handheld drill at the recommended speed of 1,400–1,700 rpm. Use with a drill press is not recommended by the manufacturer.
How many passes are needed to create the chamfer on a complete table?
A single pass per hole is sufficient to create the chamfer. For a self-built table with the Parf MkII system at a 96mm pitch, equivalent in size to the Festool MFT/3 (77 holes), the complete operation takes just a few minutes with a charged handheld drill.
