Trying to detail how I make a stainless pipe into a Y joint, then into a set of blast pipes for exhausts, I like this way better than just jamming some elbows together because I can get the butt gap close and I'm left with a tight fit to weld up

I've seen this joint used in industrial applications as well

hopefully it makes sense

www.lateralparts.com
   / @mattd5117   previous video on pie cuts