Diamond Core Drill Bit

"Unbreakable" Diamond Core Drill Bit. This bit carries an unconditional workmanship warranty against segment loss and cutting quality. High quality industrial bits used made exclusively for rental yard usage. These bits will drill through anything from the softest of marble to the hardest of granite. These bits are made using a patented one piece Sintering technology which literally molds the segment into the pipe. If the segment ever separates for any reason, please return the bit for a free replacement. All bits contain grade T super fine diamonds in high concentrations to ensure bit life.