These carbide production modeling aluminum performance drill bits are efficient and durable, making them perfect for any industrial and scientific drilling task.The carbide material ensures precision and accuracy, and their lasting durability makes them a great investment for any cutting tools collection. However, they might be a bit on the expensive side for some users..
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.