2 1/2" Concrete Core Bit-Supreme, 2 1/2" x .160 x 1-1/

2 1/2” Supreme Core Bit for core drilling concrete, green concrete, asphalt, brick, hard brick, pavers, clay pavers and field stones. 2 1/2 inch Supreme Diamond Core Bits contain a higher diamond count and are laser welded with a shank length of 14”. Supreme Core Bit for wet or dry use with hand drill or core drilling machine.