I bought these for drilling floors in 7075 aluminum 80% before milling. These beats are amazing. I'm still working with my first bit, drilled a lot of holes and it's still sharp. I've used several other drill bits in the past and can often drill about 4 holes before the bit needs sharpening. So when I cut the floor I had a few of these and I sanded them through and then resharpened them. If you want to drill aluminum I recommend these drill bits.
High-Performance Bosch BS80 6W Bandsaw - 80 Inch 4 Inch Blades
11 Review
Enhanced Cutting Efficiency with Olson FB23370DB 0 025 2 Inch Blade
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