Different Types of Hole Saws

A hole saw is a saw blade whose annular kerf creates a hole in the workpiece without hang to cut up the core material. Hole saws typically have a pilot drill bit at the centre to to keep the saw teeth from walking. They are one of the most popular tools for making round holes of different diameters in a wide range of different materials. There are 3 main different types of hole saws:

1. Morse Master Cobalt Bi Metal Hole Saw
2. Morse Tungsten Carbide Tipped Hole Saws
3. The Morse Tungsten Carbide Grit Edge Hole Saws

Morse Master Cobalt Bi Metal Hole Saw

Being one of the most popular types of hole saws as it suitable for most jobs. Although it has been thought that this type of hole saw cannot cut stainless steel, the Morse Bi Metal Hole Saw has been specifically designed to do this and can consistently make approximately 75 cuts through stainless steel. Standard morse bi metal hole saws have a cutting depth of 38mm and has a high speed steel cutting edge and tough fatigue resistance backer.

Morse Tungsten Carbide Tipped Hole Saws

These hole saws have been specifically designed for sawing holes in abrasive materials, for example, fibreglass, drywall and nail free wood. They have a coarser tooth pitch which enables thicker nail free wood surfaces such as countertops to be cut without scorching. An advantage of this type of hole saw is that is it super resistant to heat and water with a shock resistant back. This saw generally is preferred by locksmiths as it is ideal for cutting out mortise locks because of it's tooth pitch allowing bigger chips to be cut.

The Morse Tungsten Carbide Grit Edge Hole Saws

These are the hole saws that are designed to cut much more abrasive materials such as steel, cast iron and fibreglass. They have a castellated edge so they can run in forwards and reverse, therefore doubling the life of the hole saw!