When it comes to choosing a metal cutting blade, there is a lot of choices say the experts at Devour Tools. It can be overwhelming to know which is the right blade for the job, particularly in terms of segmented and continuous rim blades. It is important to understand the difference between the two so that you can choose the right blade for the job you are doing.
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How Do Segmented and Continuous Rim Blades Differ?
When looking at both blades, it is easy to see how they differ as they will look different. A segmented blade has a number of different segments and built-in notches whereas a continuous rim blade is one solid piece of metal with a cutting surface that runs the entire circumference of the blade. But just knowing what each blade looks like is not enough. You need to know what each blade is typically used for in order to choose the right one.
What to Know About Segmented Blades
A segmented blade provides a quick rough cut and can be used wet or dry. It is typically used for cutting through the hardest materials such as concrete, brick, limestone, and masonry. The biggest benefit of a segmented blade is its ability to cut dry thanks to the notches that draw air away from the blade, keeping it cool. This means there is no need to use a liquid coolant.
Another advantage of the notches on a segmented blade is that they ensure a quick cut because they expel dust and debris. However, the notches do tend to increase the risk of chipping and the cut tends to be rough. This means that segmented blades are not suitable for materials like tile or porcelain, where a smooth cut would be required.
If you need to cut hard materials like concrete and do not need the cut to be smooth, a segmented blade is usually the best choice. But remember to wear goggles or a face shield to protect yourself from flying debris.
What to Know About Continuous Rim Blades
Continuous rim blades do not have any segments or notches and therefore provide a smoother cut. When using a continuous rim blade, it is best to use them wet because they are more prone to overheating than segmented blades. When used wet, continuous rim blades are kept cool and the liquid will also help to get rid of any dust and debris. This makes cutting safer but also helps to prolong the life of the blade.
Designed to run at slower speeds than segmented blades, continuous rim blades are ideal for use on materials such as glass, tile, granite, and stone where a smooth, precise cut is required.
Choosing the Right Blade for the Job
As well as choosing between a segmented and a continuous rim blade, you will need to think about the harness of the blade. Diamond blades, for example, can be both segmented and continuous rim but the bond between the actual steel blade and the diamond tip will be measured as soft, medium, or hard. The type of bond will determine the materials the blade should be used on.
A softer bond is typically used for cutting through tile or porcelain whereas a hard bond will work better when used with materials such as concrete. In general, the harder the material being cut, the softer the bond required, and vice versa.
Choosing the correct blade for the job will make your work easier and safer. When buying a new blade, it is a good idea to ask for advice at the store but knowing about the different blades will help.