
You get what you pay for. I got them because my Vix bit needs are limited and I didn't want to spend a ton of money on the rare occasion I needed a 5/64 centered hole. The large parts in it seem to be fine. Little ones are garbage. When I first used the 5/64, the drill itself was slightly bent and literally fell apart when I inserted it into the drill (I found out afterwards). There is nothing you can do to fix this. Another thing to know about the smaller bits is that they DO NOT have beveled ends, meaning all sense of centering is lost. You have to center with a sink hole and you can't do that with this one. May be suitable for non-countersunk holes. I ended up buying a 5/64 bit version that covered more than the entire set. Lesson learned.

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