tap drill size
"Jim Thompson" wrote in
message ...
1/4"-20 tap calls for 0.201" tap drill (13/64")
Into a steel 1/8" panel, tap is hard enough to turn that handles flex
:-(
Is that normal, or do I need to go up one or more drill sizes?
...Jim Thompson
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You need some cutting oil, Kerosene or plain oil will do.
Cheers
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