Durable Carbide Drill Carbide Bit Carbide Hobbing Carbide Milling Cutter Carbide Milling Tool Carbid

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 size of the drill and a smaller "plug" or "core" which comes from the center.
Durable Carbide Drill Carbide Bit Carbide Hobbing Carbide Milling Cutter Carbide Milling Tool Carbid