Circular saws are dangerous, so it’s important that you understand which type of saw blade is most effective depending on the material you are cutting. This will not only make the saw more efficient and create less waste, but it will also increase your safety. Here we give an overview of which circular saw blade is most suited to different types of material.
Use: standard circular saw blades
Standard circular saw blades are ideal for cutting wood or wood composite (some variations of circular saw blade can also be used to cut plastic or aluminium). Made of teeth and gullets, the number of teeth determine the speed of the blade (less teeth spin faster, but are less precise) and the gullets help remove wood chips.
Some blades also come with expansion slots which help prevent warping, by reducing vibration as the blade expands and contracts when in use. This in turn creates a straighter cut.
Another feature to look for in a blade is one with a reduced kick-back design, or anti-friction coatings.
There are three main types of standard circular saw blade. The rip-cut blades are used to cut wood along the grain. They have fewer teeth (16-40), deep gullets for improved wood chip removal, and are designed to cut aggressively. Cross-cut blades are used to cut wood across the grain. They have more teeth (40-80) for cleaner cuts, and come with shallower gullets for chip removal. There are also combination blades that can be used for going with and against the grain. They have groups of teeth separated by deep gullies, with four teeth for rip-cutting and one tooth for cross-cutting.
Other types of standard circular saw blade include.
- Framing blades – consist of 24 teeth and are used for rough carpentry, where speed is more important than cut.
- Plywood blades – made with over 100 fine teeth which are used to prevent splintering.
- Thin-kerf blades – Made with a thinner profile for easy cutting with minimal waste
- Hollow-ground – The blade has a thinner body that its teeth. This is to help prevent the blade from being pinched in the workplace
Material: Tile and Slate
Use: continuous rim blades
Continuous rim blades are a group of diamond-tipped saw blades that can cut into a selection of stone materials with a very a clean finish. This blade has no teeth, and can work in both dry and wet conditions. When purchasing a continuous rim blade, it is important that you know which application it can be used for as some blades can only be used in dry conditions, and others only in wet conditions.
Material: Brick and Concrete
Use: turbo rim blades
Turbo rim blades are a diamond tipped like the continuous rim blade, but with a serrated rim. These blades cut much more aggressively than the continuous rim blade, but leave a less clean finish. Like the continuous rim blade, the turbo rim blade can be used for wet or dry conditions with different variations best suited to different conditions.
Use: segmented blades
Segmented blades are another diamond tipped blade, but has a rim with deep gullets which you would normally find on a standard saw blade. These segments create the most aggressive cut available for diamond tipped blades, and cut at a much higher speed than most other saw blades. Because of this, the cut from a segmented blade is rougher than standard blades, and the cut less fine. Like continuous blades and turbo-rim blades, there are variations of this blade that can be used for dry and wet conditions.
Use: Abrasive Blades
Abrasive blades have no teeth or segments and are made of abrasive materials like aluminium oxide, or silicon carbide. Most abrasive blades are used for cutting hard stone materials like brick or concrete, but some can be used to cut through some metal applications.
Saw blades are dangerous, so it’s important to match the blade with its application. By ensuring that you have the correct blade for the job, you are actively protecting yourself, and your equipment. If you would like to know more about the saw blades that we supply, or make an enquiry, please contact George Lines on 01753 685354