Excellent cutter 10 mm. I bought it for the Festool Domino. Some necessary operations are easier to perform with a plunge router than with a domino. So I use this 10mm router along with 10mm dowels to get a good connection. I had a similar cutter 8mm but it's not. The CMT bit described as 8mm is actually 3/8", which is not the same at all. CMT makes good and sharp bits. I buy them when I can. They are also a cheap replacement for Festool domino cutters. Search , be diligent and you might find them.