GRANITE CORE BIT Our GRANITE CORE BITS provide great cutting action in marble, granite, and NATURAL STONE. These professional core bits make drilling smooth precision holes, clean and very easy. The bitss have a 5/8"-11 threaded arbor to fit most core rigs and heavy grinders. The bits can be used in either wet or dry applications. Bit Features: 6MM SEGMENT HEIGHT - long lasting in marble and granite HIGH DIAMOND CONCENTRATION - aggressive cutting action 5/8"-11 ARBOR - fits most core rigs and heavy grinders Usage: MARBLE, GRANITE, TILE Quality Level: PREMIUM DIAMETER     RIM THICKNESS    SEG. HEIGHT        ARBOR      1-3/8"                      4"                           6 mm                     5/8"-11