Originally Posted by Baketech  For simple engraving that needs to be paint filled, it's really hard to beat the cost effectiveness of a plain old 60 degree center drill. (spotting drill) They are cheap, rugged and fast....
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Thanks. I'd estimate that over the past few weeks you've saved me at least £300. I was burning out or snapping off £8 a time bits at an alarming rate untill I tried a 50p centre drill. They still snap off or burn out at the same rate, but who cares????