I need to tap a thread in a blind hole, the hole is the correct diameter but I assume it's hardened. The tap will not start at all. Any suggestions?
thanks
Simon
tapping threads in hardened holes
Aug 06, 2004
1 Replies
"I need to tap a thread in a blind hole, the hole is the correct diameter but I assume it's hardened. The tap will not start at all. Any suggestions? "
either anneal the part & run a tap in or send it out to an edm shop. I frequently burn threads into hardened die components.
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