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Topic Title: Drilling / pocketing with small straight bits
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Created On: 08/08/2017 02:39 AM
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08/08/2017 09:00 AM
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Joe Clark


The smallest bit I have is a 1/16" straight bit. I need to drill holes as small as possible. Would it be safe to pocket cut a 2mm circle using this bit? I'm unsure because it does not have a cutter in the center. I even checked Drilling Process Video for help ,but it did not help much.Any advice on how to do this with a 1/4" shank? I'd happily buy a proper drilling bit, even if smaller than 2mm. But with a 1/4" shank there doesn't seem to be many options.

Perhaps the drill press is the best method. I just have a lot of them to do!

Any help will be appreciated.
Thank you.
08/21/2017 09:30 AM
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Robert Simonis

This question might better be answered on the SME.org forum, but please tell us more about what problem you have. What kind of material, what depth, coolant through or no, dim and quality specs. I drilled holes in 6061 Al, about 1mm deep, 14,000 pieces a day, for ABS brake valve bodies for years. Used a 0.7mm carbide drill in a collet tool holder.
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