These are titanium drill bits from Bosch and probably one of the industry's leading 1-2 drill bits in the home (and possibly commercial) market. With proper use, these drills should provide years of reliable service.
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
10 Review
Olson 80 Inch Blade FB14580DB-025
10 Review
πͺ Durable DEWALT DW3986C Portable Blade 3 Pack for Efficient Cutting
10 Review
πͺ Bi-Metal Cutting Blades: Imachinist S933414 - Enhancing Precision and Performance
10 Review