These bits never have a problem and I use them on stainless steel all the time. Some people have trouble breaking them with a hand drill. If using with 645-011, the trick is to first punch a pilot hole without an external hole saw gauge. Most breaks occur when the outer hole saw first grips the metal.
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review
POWERTEC 62-Inch 8-Inch Blade - Model 13132X
12 Review
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review