I used these hole saws to drill 18 gauge sheet metal. Drilling takes a bit of patience, but they cut a nice clean hole. Good value for money. Works much better than a bi-metal hole saw.
Olson 80 Inch Blade FB14580DB-025
10 Review
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review