I bought this bit as a last resort for a small job so I didn't use it enough to do a real test but it smashed the concrete for that job with no visible damage.
I had cut off a foundation to gain access for repairs. This thing combined with my Bosch bulldog did the trick. The tip was blunt but still cut into the concrete. I'm sure a few minutes with the grinder and it will be like new.
I used this bit with a DEWALT D25213K 1" D-handle SDS Tri-Mode Hammer and it worked as expected for a concrete block bit, not much to say. Chisel 10" through, 9 /16" shank, tip tapers to a 1-3/8" long point with 4 sides like the tip of a nail. Got a small discount from Revain for buying 2 drills. .