Was in the general area and went by to check on him. Off to the boonies of Washington, GA to find a LH drill bit...

Larry, if that fails, try Handy Ace Hdw in Tucker, GA. I know they have LH taps and threaded fasteners. If they don't have it, they can get it in a couple of days. US78W past Stone Mtn Park to Hugh Howell Rd (SR236), exit and follow Hugh Howell several miles. Cross Mtn Industrial. Go several more blocks and Handy is in a strip center on the L before you get to Chick Filet and US29 intersection, on corner of Hugh Howell and Cowan.

Not responsible for advice not taken...