2.5" Dry Diamond Masonry Core Drill Bit2.5" x 6.5" Dry Core Drill Bit 13/16" female threads 10 MM Segment Height last twice as long as other bits 6.5" Barrel Height and 7.75" overall height Drill perfect holes in block, brick, concrete and other materials without splitting. All of our bits are LASER Welded to last a lifetime. Our Steel Dragon Tools Wet and Dry Diamond Core Drill Bits have a 1 year warranty against manufacture defect. Feel Comfortable knowing that our factory strictly conforms to ISO-9001-2000 Quality Control Systems and ISO-14001-2004 Environmental Systems.
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