Review on Industrial Masonry Drill Bits Set: Optimize Your Search by Darrell Verduzco

Difficult to drill into concrete. I could only drill with a lot of force and also the drill bits came out of my drill press holder automatically as I worked and I kept checking them to make them as tight as possible before using them. It would be very cost effective as a set in a box of 10. The packaging is very ordinary, with no branding. It just came in a clear plastic box and wasn't even clean. It's cheap and I don't recommend it. It is better to choose well-known brands.