DMAPL4220 5/8 in. x 6 in. x 8 in. Rebar Demon™ SDS-Plus 4-Cutter Full Carbide Head Hammer Bit

Hard concrete no problem works well 👍 I will Need for next job smaller size I will buy the same brand.

Made holes and worked great. I made 7 4" deep holes and this bit looks great still.

Before purchasing, I read plenty on this bit as well as the reviews, so I find it important to leave an honest review for others to help them with their purchasing decisions. That being said, I was hopefully optimistic with nervous reservations because the rock I was drilling was hard like Granite and already claimed the life of 1 bit of another brand that had a defect, so I had some reservations. I bought this and 3 other bits, but never had to change bits, just this one was all I needed and drilled about 15 holes without trouble or getting dull. I'd definitely recommend this to a friend or anyone drilling through hard rock #7 on the Moh's scale at least or less!

These bits are very impressive. I purchased the 5/8x6x8 to drill holes in a concrete pad and used "feathers and wedges" to break chunks of concrete off. It was a pretty big pad, 15x15 or so, and 4-6 inches thick, reinforced with wire mesh (maybe 3/16" thick?). The bit had no problem cutting through the metal mesh along with the concrete. I sometimes drilled up to 50 holes in a row before stopping to put the feathers and wedges in and it held up perfectly. Incredible.

Makes short work of rebar.