3-Pack 1-3/4-Inch Laser Welded Dry Diamond Core Drill Bits for Cutting Concrete and Asphalt, 1-3/4" Diameter x 11" Length

3 Pack, The professional quality laser welded dry diamond core bits offers the best lifetime available on market Laser wielded Segment height 0.400” Length: 11” long to produce 10” core 5/8”-11 thread