How to drill holes in stone, how to drill a hole in tile, how to drill a hole in glass
When no other drill will do - use Eternal Tools

How to use our diamond drill bits and diamond core drill bits

Using our diamond drill bits and diamond core drill bits is simple and requires no real specialised equipment. Following the steps below will ensure that you get the maximum life out of our diamond drill bits and produce the best results.

Step 1 - use our diamond drill bits at slow speeds

Our small diamond drill bits need to be used at appox. 7000-10000 RPM, this is generally the slowest speed on your rotary tool or Dremel.

Our diamond core drill bits need to be used at varying speeds depending on the overall diameter eg. 6mm-2000 RPM, 12mm-950 RPM, 24mm-700 RPM

Step 2 - use our diamond drill bits with water

Our small diamond drill bits are best used underwater, this keeps the drill bit cool and enables circulation of the water to remove debris and keep things lubricated. One tip is to place some blu-tac or plasticine in the bottom of a bowl filled with water and drill through and into the blu-tac.

Our diamond core drill bits are generally used with water being squirted directly onto the working surface, this can be a makeshift washing up bottle or professional water feed.

Step 3 - start the diamond drilling process correctly

To start our small diamond drill bits we recommend tilting the drill bit until it bites on the edge and then taking the drill up to vertical to finish.

Our diamond core drill bits can be started by making a template out of wood or plastic the same size as the drill and then drilling through the template and into the object. A simpler method is to cut a "V" into a piece of wood or plastic and then start the drill bit by placing it on top of the "V", once the drill bit bites you can remove the template.

Step 4 - use our diamond drill bits with light pressure

Both our diamond drill bits and diamond core drill bits are sensitive to heavy pressure. When drilling you should use light pressure and continuously take the drill bit in and out of the hole to enable the water to circulate and debris to be removed. Be patient and you'll get much more life out of your drill bits.