10-Pack 12" Laser Welded Wet Diamond Core Drill Bits for Cutting Concrete and Asphalt, Professional Quality, Fast Drilling, 12" Diameter x 17" Length

The professional quality wet diamond core bits offers the best lifetime available on market, fast drilling for concrete and asphalt Laser wielded Segment height 0.400” Length: 17" long to produce 13-1/2" deep core 1-1/4-7 thread