Review on 1-5/8" Dry Diamond Core Bit For Brick And Block With 5/8"-11 Pilot Bit Adapter, 9.5" Drilling Depth, 5/8"-11 Arbor by Brad Cash

I usually don't write reviews. Do these bits work? Yes, but I they are not meant to be used constantly. Maybe used to get you by without the need to buy a larger heavier hammer drill. Our bosch bulldog hammer drill has more than enough torque. I have recently bought two 1 1/4 inch of these bits to use with the drill. Drilled 10 holes into cinder block walls than the metal cutting tip broke off. I bought a second one and the same thing happened after another 10 or so holes. They get the job done, but it stinks that the cutting tip keeps falling off these things.