And that's why I think big drill presses or hinges on DYI are not a good 
idea. No perceivable movement horizontally is acceptable :)

SME wrote:
>> I just bought some carbide bits from ebay. They're not too expensive (I
>> think)
>>     
>
> FYI: Carbide bits are extremely unforgiving of flexure - bend them a
> little and they cease to exist. Steel bits are far less sensitive but
> wear much faster.
>
>
>     R
>   
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