Wehrs WM2381250 1-1/4 Interior Tin & Tubing Notcher, Racing Shop Tool
$81.99
Notcher will do .040 and may be able to go up to.080, Makes notching interior tin around tubing quick and easy, It is available in 3 sizes, 1.25 inch, 1.5 inch, and 1.75 inch to better fit your needs.
