This isn't going to be the popular option, but I was going to buy a jig for my buddy to do mine and ended up going with a metal clamp on style. Works great and only $40 shipped I think as I didn't want to wait a year for the jig. Even If it'll get you by for a while till you get the jig.
Zero issues, fits great. Was also debating sending my bolt off to be threaded but not now.
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I have one of these and use an annular cutter. Works awesome