10-Pack DPT 1 1/4 Inch Wet Diamond Core Drill Bit Hole Saw for Concrete and Asphalt, 1-1/4" Diameter x 16" Length

The Super-Plus quality wet diamond core bits offers the best lifetime available on market Laser welded Segment height 0.400" Length: 16" long to produce 13" core 5/8"-11 thread