On Sep 7, 4:57*pm, Grant Erwin wrote:
sal wrote:
Can someone explain how I can cut an 10 in. stovepipe *with an 22% angle it
is for an vent pipe on an *4-12 *roof .

The correct way is with a 24" abrasive saw and an appropriately angled block
to put between the pipe and the saw's fixed jaw.

Pipefitters working on heavier pipe in a shop would use a large bandsaw. In
the field they would carefully lay out the line and cut it with a torch.

If a large saw isn't available you can lay out the line and use a plasma
cutter freehand to make the cut. If the tube wall is thin you could cut
slightly proud of the line and then sand to the line.

Grant

Dremel tool or other rotary cut off tool with a fiber reinforced thin
wheel. $30 at Wally World