Review on 🏗️ Concrete Masonry Tungsten Carbide Plastic by Kevin Mills

Now I know why masonry drills haven't changed in fifty years, maybe even longer. They work. These pieces looked interesting, so I tried them out. It turned out that the boring old-school 1/4" double-tipped bit drilled through the cement block four times faster than either of the 1/4" masonry bits in this set. I can't even picture myself trying to drill through hard concrete with these bits. We strongly recommend that you purchase a set of two carbide burs.