Supreme Wet Drill Core Bits for High PSI/Reinforced Concrete 1" Diameter 5/8"-11 Threaded #30/40 Diamond Grits

If you have the correct extension (which is commonly provided by the drill or bit manufacturer), and you cut the core produced by the first "run" of the drill bit from the drill-bit, then you can do it. Holes are obvious. This operation will require you to move the drill rig out of the way and then reposition it so that it is aligned with the drill pipes. The bit and extension rod need to be inserted into the hole to continue drilling. For bits of this size, extension rods are usually a little less than one inch in length Half inch to a foot A diameter of 34" (less than an O) was measured. This 2" bit has a flat bottom (of course). If you order the extension, make sure it has the same thread size as the bit (1-inch). 3/4" and 1"

Hey, you would really need to turn off the hammer function for diamond core bits. This is the only mode available

Thanks for your question, yes we can do a return and reorder for the 2-pack The size of a quarter and three A 1/4" piece. If you would like to return something, please do so.