Review on Carbide Production Modeling Aluminum Performance by Mike Starling

They don't center properly and I immediately broke one of the 2.05mm. Good thing there are more in the set, I had 4 pink ones marked 2.05. The remaining 2 may or may not be 1.95. but he drilled the holes I wanted. If you plan on serious use, buy from mcmaster-carr, but for one-time use they will do.