(5-Pack) 8 Inch Top Professional Quality Diamond Core Drill Bits for Cutting Concrete and Asphalt, 8" Diameter x 17" Length

The BEST professional quality in the industry, latest technology, fast drilling for concrete and asphalt. 5 Pack Laser wielded Segment height 0.400” Length: 17” long to produce 13-1/2” core 1 1/4"-7 thread