Selecting the proper blade for each project is key to a successful completion. Diamond blades are the ideal choice if you want to make professional, clean cuts in concrete. However, not all diamond blades are created equal, and you get what you pay for when it comes to the quality of the blade and the cut it will make.
If you need to make a large number of high-quality cuts, like most contractors, selecting the right diamond blade for the job is critical. You also can’t rely on only one type of blade to perform the same cutting task in different types of material.There are numerous factors to consider when it comes to blades for your saw. Using the wrong diamond blade on a material it’s not meant to cut can cause damage to the blade, the saw, and even the operator. Below are questions to ask when figuring out which blade is right for your project.The type of saw you’re using will determine the kind of blade you should get for a specific job. Different types of equipment use different blades, and although you can use the same blade on multiple saws, they should have similar RPM and ratings.Whether you’re using a low-powered or high-powered saw, it’s always important to look at a blade’s specifications. For instance, using a general-purpose diamond blade on a high-speed power saw won’t work.An adequate saw for a diamond blade must provide enough power, proper RPM, flanges that are flat and parallel equal to at least 1/3 of the blade diameter in size, and proper alignment after the blade is mounted between its flanges. While these factors may limit your blade selection, at least you’ll know what is adequate and what is not.Consider matching your tool series to a blade series. Pay close attention to the blade specifications from the manufacturer. Speed rating specifications provide the most optimum performance for your saw and blade.For maximum cutting speed and blade life, you want a blade that matches the material as closely as possible. While some blades can cut a wide range of materials, the blade you choose should be specified for the job-at-hand for maximum performance.The material directly affects the cutting speed of the blade as well as the blade’s lifespan. That’s why determining the material that will be cut the most often is a priority when selecting a diamond blade.When it comes to diamond blade cutting speed and safety, the hardness and abrasiveness of the material matters. Soft, abrasive materials require faster shaft speed, while harder and less abrasive materials require slower shaft speed. Additionally, the size and hardness of the aggregate, along with the compressive strength, impact cutting speed and ultimately the life of the blade.The depth of the cuts you want to make are a factor to consider when choosing your blade. The cutting depth can vary based on the blade diameter, the type of saw, and how far parts of the saw extend below the collars.If you’re cutting concrete, the blade you choose greatly depends on the timing of the cut. You can cut while the concrete is still green, or after it has hardened. For example, if you’re using a Soff-Cut system scoring green concrete, which is softer and more abrasive, you’ll want a diamond blade with a hard bond.
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