Morse Tungsten Carbide Tipped (TCT) Hole Saws

Tool Wise Admin

Posted on March 28 2018

Is the hole saw of choice for people cutting abrasive materials such as fibreglass, particleboard, Formica, kitchen worktops, asbestos board, acoustic tile, plastic, plaster, nail free wood.

  • Premium tungsten carbide tipped teeth give superior wear resistance through abrasive materials
  • Special tooth design for faster hole saw cutting
  • 3 teeth per inch give wider gullets for better chip clearance

Why is carbide tipped better for cutting kitchen worktops?

Kitchen worktops can be 40mm deep and so at the upper end of the hole saw cutting depth. With a bi-metal hole saw you can sometimes get a burn mark around the hole. This can happen if the swarf does not clear out of the cut so heat builds up thus burning the wood. Bi-Metal hole saws have 5 teeth per inch whereas the carbide tipped saws have only 3 teeth per inch. This means the gullets are wider which allows the swarf/chips of wood to clear the saw especially when cutting deeper materials and reduce heat build-up and prevent burning.

Why do I need a carbide tipped hole saw for cutting through particleboard/MDF when it is easy to cut?

Any sandwiched product made from glue and wood will be abrasive and cause the teeth to wear prematurely. It’s the glue which makes the material abrasive causing increased wear or sticking to the teeth, creating extra heat build-up which again leads to premature wearing. As the carbide tipped hole saws are 3 teeth per inch compared to our bi-metal hole saws 5 teeth per inch the wider gullets make chip clearance easier and reduce wear. The carbide tips bonded to each tooth are able to withstand higher temperatures thus giving superior life.