What is a hole saw?
|A hole saw is a ring-shaped saw blade attachment used in conjunction with a power drill.
The hole saw consists of a cylindrical saw blade mounted on an arbor, which is a spindle-like tool that is used to grip other moving tool components. As with many hole saws, there is often a drill bit attached to the arbor.
|Hole saws often have drill bit attached so that, prior to cutting, you can make a starter hole that will keep the saw blade aligned and secure. The starter hole is known as a “pilot hole”.
|The hole saw attaches to the power drill via the arbor and the drill’s chuck (most commonly 3/8 and 1/2 inch drill chucks). It is then rotated at high speeds and used to cut holes in a variety of materials such as wood, metal, plastic and even brickwork.
|These circular holes are often created prior to installing drainage pipes and plumbing fittings as well as for many other applications.