[timothale]

I have the hole saw, chepo type.. I drilled a couple holes in my southworth 4 x 4 lift table and bolt the notcher to it so it drills horizontal then I can use scraps of angle iron and tack to the table top to hold the tubing to get the angles that the notcher won't adjust to . My old neighbor use to build 10 to 20 circle cars a year and he used to use his chop saw make two cuts and get the angle he needed then finish it with a hand held grinder. He had a big milling machine but said the chop and grind was faster. The metal suplier had the wrap around guides, I glanced at them but most were for 1 1/2 to 2 inch pipe used to make handrails.

[ogre]

Originally Posted by BAILEIGH

Here is a cool notch template program

http://metalgeek.com/static/cope.pcgi

very cool template program, we do a lot of turbo install and custom exhausts this will work well for Y pipes

hint: if your notching heavy wall pipe with a torch,
hold the torch parallell to the pipe your notch is going on to minimize grinding.
that's hard to visualize. don't roll the torch perpendicular to the pipe.