Diamond Drill Bits

Diamond drill bits are a type of diamond tool, and therefore contain diamond segments bonded to a base material. It is the hardest type of tool and is especially frequently used on highly abrasive materials.

Until recently scientists thought that diamond was first used some time 500 BC in India. However recent new evidence suggests that craftsmen in China used diamond for polishing as far back as 4500 years ago.

The industrial market for this mineral focuses primarily on the hardness and heat conductivity, while clarity and color are considered irrelevant. Thus 80% percent of what the miners find end up in tools (such as diamond drill bits, diamond core drill bits, blades, polishing cups, abrasivesetc…) and not on the necks of Titanic bound debutants.

Due to the fact that it’s the hardest material we use, it is excellent for working on stone, ceramics, marble, glass, fiberglass, porcelain, etc. However, diamond drill bits grind, as opposed to cutting the surface. Nevertheless, they are less noisy and less brittle then other alternatives.

Diamond core drill bits (also known as diamond hole saws) have a hollow center and cut a circle in the material to create or enlarge an existing hole.

It is generally recommended to lubricate these bits with water.

And of course, whatever you do, always pay attention to the manufacturers instructions. Different makers use different material composition, and thus may require different mode of care and application.