Diamond saw blades are made with teeth that have been coated in a strong carbon grit mixture. These saw blades are designed to cut through materials that would wear away normal blades, including stone, clay, concrete and similar substances. Diamond blades are usually designed for these tough materials. Trying to cut wood with a diamond saw might not lead to good results.
Diamond Saw Damage
Diamond saws are designed to be the most durable blades for the most difficult saw projects. You will not need to worry about damaging the diamond saw blade itself. These blades are made to withstand stone materials. The soft fibers of wood boards will not hurt the blade itself. The danger is in how the diamond blade treats the wood itself.
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General Purpose of Diamond Blades
General purpose dry diamond saw blades can be used for several materials, but reconsider before using them to cut wood. The harsh grit of the diamond blade can cut tile and masonry with straight lines. When applied to wood, however, the blades might create a rough cut, ripping apart fibers, or might make it too easy to create crooked cuts. In most cases, it is better to use a traditional steel blade for wood.
Wood Cutting Blades
Carbide-tipped saw blades are designed especially for wood. These are similar to diamond saw blades, but are designed with teeth and coatings that will make it easier to cut wood, especially hardwoods. If you do want to use a diamond saw blade, ensure that you use a carbide version that is specifically designed for wood.
Exceptions
Some exceptions exist to using diamond blades on boards. For example, fiber cement board comes in planks and might resemble wood, but it is actually made from cementitious materials. Do not assume that the board shape means it is made of wood. Diamond saws work well when cutting fiber cement and similar materials for construction products.