Review on Cozy 10Pcs Diamond-Tipped Drill Bit Set by Wagner Witlin

The burs looked like they should work. I needed to drill a 1/8" deep hole in a piece of china that was only about 1" in diameter mm had to have. I tried sneaking up on it both in diameter and depth and after 3 holes the hole got bigger in diameter than it was deep and then I gave up. The drill bits were incredibly cheap and worked horribly badly Not worth the price in any price range.