MK Diamond Dry MK Dry Bits. Premium grade core bits for masonry. MK Dry Core Bits are specifically designed to tackle a variety of soft brick and concrete block drilling operations. They feature laser-welded technology and inventive bar-slot cooling to promote efficiency, reliability and safety. MK Dry Cutting Bits are 10" in length, come with standard 5/8"-11 threaded nuts, and easily attach to most hand-held drills. Additional diameters available upon request.
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