UJK Technology

UJK Parf System Reamer for 20mm Holes

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  • UJK Parf System Reamer for 20mm Holes
  • UJK Parf System Reamer for 20mm Holes
  • UJK Parf System Reamer for 20mm Holes
  • UJK Parf System Reamer for 20mm Holes


NOTE: This reamer requires a drill with a 3/8" chuck.

Restore the Perfect Fit of Your 20mm Dog Holes

The beauty of the Parf Guide System lies in its accuracy, in particular the close fit of Parf Dogs and accessories in the 20mm dog holes. Depending on the material chosen for the bench top, sometimes a stray wood whisker or change in humidity can affect the fit over time.

The UJK Reamer is designed to remedy the problem and restore the quality of 20mm holes. The Reamer removes stray wood fibres that hinder the insertion of UJK bench dogs and Parf Guide System accessories. This wood hole reamer improves the quality of holes in bench tops. The Parf System Reamer is made from stainless steel for use in a power drill with a 3/8" chuck.

Key Features

  • Restores the accuracy of 20mm Parf dog holes
  • Removes stray wood fibres that affect the fit of Parf dogs
  • Reams Parf dog holes distorted due to changes in humidity
  • Requires power drill with 3/8" chuck


Watch as Peter demonstrates how to use the Parf System Reamer in the video below.

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14 Reviews

  • 5
    20mm reamer

    Posted by Christopher Romeo on 25th Jun 2024

    Works perfectly

  • 5

    Posted by James on 15th May 2024

    The tool is an absolute beast. And it’s a bargain for what it does for my MFT.

  • 2
    good enough but could be better

    Posted by Unknown on 22nd Dec 2023

    i put shellac on my new mft and needed to clean out the holes w this. The steel is pretty soft and the smooth shank is hard to keep a grip in the drill chuck. Cleaned out the top and did the job, but its about done. Wish there were alternatives, but there arent.

  • 4
    20mm Reamer

    Posted by Jim on 25th Apr 2023

    Rams as it should. Not the cutting edge is very shallow so you may need a brush and router bit cleaner after reading several holes (especially if you had just sealed the top like I did and had shellac in the holes).

  • 5
    Resolve Woodpecker MFT Tabletop Issue

    Posted by Mark Bunge on 4th Apr 2023

    I purchased 2 Woodpeckers MFT channel tabletops as an upgrade to my Festool tops. Problem is, you cannot get any bench dogs or other 20mm Festool accessories into the dogholes-they’re just a tad tight. This reamer resolved that issue entirely. I shouldn’t have needed it, but here we are….

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