Use them on copper HVAC, they work, be prepared to sand the inside, they leave lint. Bought another product after they work better look like a small pair of pliers that slide apart and insert on either side work much better.
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review
Chest freezer Biryusa 155KX, white
16 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