What lubricant should I used to roll tap extruded aluminum in the 4-40 to 1/4-20 range?
Thanks in advance.
Chuck P.
What lubricant should I used to roll tap extruded aluminum in the 4-40 to 1/4-20 range?
Thanks in advance.
Chuck P.
I just use plain old oil for #8 and #10 but think an EP would be easier on the torque. ...lew...
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