So I've noticed that we have a 17 inch arm thread and an 18 inch arm thread, so I thought I'd make a 19 inch arm thread. I want to see some of the big boys come out of the woodwork for this one
I'll go first. I'll post one without the tape (so you can actually see the peak) and one with it. Tape is tough to see because of the bright light and the cellphone image but I'm sure if you zoom in you can see it. I measured in at just a tad below 19.5"
Who is next?!