Types of Holesaws and Their Features

by Bahco NZ Writer & BusinessMan

When it comes to drilling holes in wooden boxes, plastic, metallic sheets, or any concrete layers then the one important hand tool that comes handy is the holesaw. It is the most preferred drilling tool in order to make holes larger than 25 mm. in various objects. A multi-purpose holesaw can drill holes in any wooden, metallic or concrete layers without cutting the core material and is desirable in most drilling applications.

Holesaws come in different types including adjustable holesaws and circle cutters ranging in sizes from 10 mm to over 100 mm. Before buying the holesaw, you need to ensure that the length of the holesaw is suitable to make the penetration in the required surface that needs to be drilled.

The knowledge of various types, features and functions of holesaws will enable you to make the correct choice when purchasing a multi-purpose holesaw set from an established online or retail supplier.

Here is a checklist of some of the important types of holesaws:-

• Carbon steel hole saws

Suited for drilling holes in wooden sheets, plastics and soft metals, these are the most common and most affordable type of holesaws. They are quite flexible and can make holes to a maximum depth. Suitable for DIY repair works and home improvement projects, they require proper care and maintenance as excess heat can damage the blades easily.

• Bi-metallic hole saws

These multi-purpose holesaw set can easily cut holes in a wide variety of materials that include aluminium, plastic, steel, cast iron and wood. Made from bi-metal material they feature carbon steel bodies and hardened steel teeth that provide smooth and fast cutting without breakage. The holesaw can cut a material up to 30 mm. and the tool is highly flexible and durable.

• Tungsten carbide Tipped hole saws

As the name indicates these holesaws have drill bits made of tungsten carbide that can easily cut holes in thick or dense materials like stainless steel, plastics, fibreglass and tiles. Suited for various drilling applications, purchasing these hole saws from premium suppliers can provide customers with the maximum value for money.

• Single tooth hole cutter

When it comes to cutting holes in sheets of timber or cement, most prefer to use single tooth hole cutter that is more efficient than a carbon steel hole saw. This hole saw has only one tooth made of tungsten carbide which can easily drill holes to the depth of about 50 mm in thick materials. However, you need to clear the material from the drill bit by frequently withdrawing it for smooth operation.