Review on 🛠️ Cobalt Twist Drill Bits 6.5mm: Premium Quality and Precision for Efficiency by Ellington Gardner

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.