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I have an Encore breech thread cleaner that I just used to practice on. Yes its plastic but I don't see an issue using my drill press. I have a press vise that will hold the BP securely in place. See photos.
First step was to drill out the .157" hole for the 10-32 tap.
Next tap the hole all the way thru and check with vent liner.
Lastly countersink .372" hole 1/4" deep for vent liner and install.
I'm wondering if I should go deeper with the countersink.
First step was to drill out the .157" hole for the 10-32 tap.
Next tap the hole all the way thru and check with vent liner.
Lastly countersink .372" hole 1/4" deep for vent liner and install.
I'm wondering if I should go deeper with the countersink.