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Old 08-13-2020, 10:26 AM
Gareth Davies Gareth Davies is offline
Join Date: Aug 2012
Location: Staffordshire, England
Posts: 615

My advice for this would be to buy some decent quality drill bits that have a split point to minimise pressure and use any of the lubricants suggested, or liquid paraffin even. Use a moderate spindle speed and use a pecking action to break the chips up. Hope that helps.
Gareth Davies
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