Quote:
Originally posted by DerekW
I imagine for his prices that these are not top qulity bits. How many holes have you gotten out of a bit and what thickness glass?
Having said that, if you get 4 or more holes out of each bit you are way ahead of the game, just about cheaper than a dremel bit anyway 
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I only needed one hole each, so five bucks each worked for me. They got the job done. My bulk heads are in with no leaks. I cleaned the heads with a toothbrush, they still feel pretty sharp. Im guessing I got two or three more holes left in each bit.