China HW coal mining / pcd impregnated diamond exploration coring drill bit

Diamond core drill bits, also known as Diamond Hole Saws,have a hollow center and cut a circle in

the material to create a hole. This results in a hole the

size of the drill and a smaller "plug" or "core" which comes from the center.

Diamond core drill bits are engineered to stand up to the rigors of the professional coring market.

These tools deliver exceptional drilling performance in a wide range of concrete and masonry

applications.