I have a Blake. Some others have said that their Chinese knock offs work o.k.,but I've heard so many bad stories about the knock offs,I'm glad to have the Blake. It is the quickest tool to center up stuff in the mill.
My Clausing table saw from 1963(first decent machine I ever bought) has a 3/4" arbor. Every time I buy a new blade,I have to center up the 5/8" hole and bore it out to 3/4". Back in the 60's,blades came with a little knock out bushing. Not now. I have a small boring head that I just leave with a carbide cutter in it. That and the Blake are the quickest way I have to resize the holes.