Who has these Pentastars?

sort of like this? quick throw up with a 1/2" thick plate
took about 5 minutes to setup. I'm probable going to try to cut a few out of my scrap just to see if it's workable ... are the threads 1/4-20 ?
hmm I'll have to double side it for the hole and back cutting.View attachment 1715306482
Yes on the threads. Or at least I'm pretty sure. that looks pretty cool! And definitely the pentastar that I got today is different from the ones that I got with direct connection air breathers.