I had a dilemma a few weeks back concerning another brush purchase but I opted for Plan B, make a brush. I ordered a 22mm XF finest knot from TGN and a 22mm black resin handle from Larry's. The knot and handle came within a day of each other. The fine knot is pretty one for sure. I was also pleasantly surprised with the handle (great bang for your buck!). One thing I noticed though, the knot is about 21mm in diameter and the hole in the handle is about 23mm. It wasn't completely loose standing on it's own in the handle but the knot had room. I could have waited and gotten a 24mm and put it but my SBAD anticipation filled it nicely with marine epoxy. I should also note that I like the depth the hole on the handle has (about 10-12mm deep). Well, the epoxy set in nicely and I took it for a spin!