Review on 🔩 Cobalt Drill Bit by Bosch: CO2151 by Jason Man

I used this bit to make an extra hole on my tall Simpson Strong-Tie L-Brackets that I was going to use to attach the deck posts . concrete foundations. It is important to have two wells to prevent rotation in the event of a major seismic event and this drill drilled 40 wells in about an hour with no problems. I used a drill press and carefully turned it off when the drill bit caught too much metal and got stuck.