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What is circular saw blade made up?
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What is circular saw blade made up?

Views: 43     Author: Site Editor     Publish Time: 2020-03-20      Origin: Site

Circular saw blades are specifically designed to cut through metal quickly with finished, burr-free results allowing you to minimize work-time while maximizing efficiency. There are several types of sheet metal cutting circular saw blades produced on the market today. Each is designed to handle the high strength of metal while providing a long blade life, reducing the need for frequent blade changing.

There are a variety of circular saw blades. Each rotary saw blade is designed to cut different materials and work with specific power saws. Before you buy, you need to be certain the blade is suitable for the material you need to cut and fits your saw. There are several specifications you need to consider.

Standard Circular Saw Blades

A standard metal circular saw blade is typically used to cut wood or wood composites. The number of teeth on the blade helps determine the speed, type and finish of the cut. Blades with fewer teeth cut faster, but those with more teeth create a finer finish. Gullets between the teeth remove chips from the workpieces. Expansion slots cut into the rim help prevent the blade from warping as it expands and contracts during use. They reduce vibration, creating a straighter cut.

Rip-cut blades, for cutting with the wood grain (along the length of a board), have fewer teeth (16 to 40). The teeth are designed to cut aggressively, and deep gullets provide good chip removal. Crosscut blades, for cutting across the wood grain (across the face of a board), have between 40 and 80 teeth designed for clean cuts. Smaller gullets separate the teeth. Combination blades can make rip cuts and crosscuts. They have multiple groupings of teeth separated by deep gullets. Each group has one tooth for ripping and four for crosscutting.

Standard Metal Circular Saw Blades

Abrasive blades

Abrasive blades or discs are a unique kind of metal saw blades for cutting metal. They don’t “cut” as traditional circular saw blades do. Instead, abrasive discs work in a similar fashion to grinders. Abrasive discs tend to be out of different abrasive materials as well. Silicon carbide and aluminum oxides are two of the most widely used material to produce abrasive circular saw blades.

Abrasive discs are useful for cutting through hard material like steel. You can also use them for your masonry jobs although a diamond blade is a much-preferred choice. They are designed with a combination of rough and insulating materials designed to withstand the demands of cutting through metal while producing clean, precise cuts. Most contain an aluminum oxide grain that is reinforced with two sheets of fiberglass or other insulating material. This combination allows for the rough abrasive blade to withstand high velocity and the natural hard resistance of the metal, enabling it to produce clean, burr-free cuts in virtually all metals.

Abrasive blades

Diamond Blades

Diamond saw blades are made out of steel with synthetic diamonds speckled throughout them. The diamond circular saw blade is mainly used for masonry works. The best diamond blade can cut through very hard material like concrete, bricks, stones, and tiles.

  • Continuous rim blades

These blades have no teeth, which is the main thing that differentiates them from standard circular saw blades. These kinds of blades are specifically designed to cut through materials like tile. Therefore, they are not particularly suited to cutting through the wood; that job is better left to standard circular saw blades.

  • Turbo rim blades

Conceptually, turbo rim blades are very similar in appearance to continuous rim blades in that both have no teeth. However, turbo rim blades are serrated, which gives them a lot more raw cutting power. Because of this, turbo rim blades are the kind of saw blades that you want to use when you need to cut through really tough materials like say concrete or brick.

  • Segmented blades

Segmented blades are rimmed with diamond edges. However, each edge is separated by a small gullet, which sets them apart from turbo rim blades and continuous rim blades. Because of these gullets, segmented blades are able to deliver a lot of cutting power, but with less accuracy and surface finish. If you need to quickly cut through tough materials like hardwood, concrete, or brick, and you don’t care about resulting rough cut edges, then a segmented blade is the best option.

Diamond saw blades

Circular saw blades come in a variety of sizes. This is important to keep in mind since certain size blades only work with certain kinds of saws. For example, a smaller sized blade (such as a 7-inch blade) is only going to work with smaller circular saws, such as handled models. Likewise, bigger blades (such as 12-inch blades) will work with bigger models, like table saws. Needless to say that, the smaller diameter blades cut shallower than larger blades.


Nanjing Jingfeng Knife Manufacturing CO., Ltd. is a professional circular saw blades manufacturer, providing high-quality and high accurate sheet metal cutting circular saw blades. If you have any needs, please contact us.

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