2-1/4'' x .145 x 1-1/4-7 Wet Core Bit, Paragon Diamond Tools, Mfr#: CBW-2.25

Wet Diamond Core Bits are used for core drilling concrete, green concrete, brick, hard brick, clay pavers, concrete pavers, asphalt and field stones. Diamond Core Bits are designed with premium grade diamonds for superior cutting performance and longevity.