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Search: Posts Made By: Edmond
Forum: General Metal Lathe Discusions 11-22-2009, 04:27 PM
Replies: 3
Views: 3,095
Posted By Edmond
Trying to drill holes in hard steel - need help please !

Hi Everyone. I am trying to drill 3/4" holes through Rockwell C50 heat-treated chrome alloy. I can't find a drill bit that will last more than a few minutes, even with slow speed and plenty of...
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