Review on Bosch TC6005 5 Piece Shank Masonry Set: Precision and Durability in Masonry Tasks by Djkutt Kent

I need to put shields around foundation openings. Each screen requires 4 holes drilled in the concrete blocks to attach it. There are 22 vents per bit = 88 holes drilled before swapping. As long as you cool the racket with water, it will last a long time. Heat the bit, it wears out quickly like any mason's bit.