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Old March 13, 2013, 11:47 PM   #20
Senior Member
Join Date: January 3, 2012
Location: Justin Texas
Posts: 297
No, if you use a 5/16 drill there won't be any parent metal remaining to cut the threads into. The tap drill is a 9/32 size according to my chart
I figured you needed to go a size smaller on the drill bit but I would rather come across as stupid than make a mistake.
I comprehend how a projectile can, “lose velocity", but don't understand how a projectile can, "loose velocity".
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