So I gave 5 stars to the questions asked because the quality is good, the cleanliness is good and the thickness is good. I gave the beat 3 stars overall because the beats don't come straight. I bought 2 of these bits and none of them were straight, one is way worse than the other. I could use one by holding the tip with my fingers to make it run and not try the worst of the two. The great thing about bits is that they cut very well and as I cut through multiple layers of different metals and woods the bit didn't break and stayed sharp. The 1/4 inch size I bought was straight, so maybe it's just 1/8 or smaller bits that aren't straight.