Phil Pascoe
Established Member
A lot of continental stuff is 12mm. An 8mm can be handy, as for smaller cutters 8mm are often the same price or very little different to 1/4", and heavier built. Some smaller routers will take 8mm as well. Sometimes 8mm stuff can be picked up in sales, as well. The thing is, there's little point in buying something supplied with a collet you'll never use then the following day having to buy another one. They tend not to be cheap.