The 40T blade’s design provides a good balance between the durability and aggression needed for wood, and the cutting volume needed for thick brush.
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Primary Material: These blades are often made from high-strength steel and, critically, often feature Tungsten Carbide Tips (TCT), which are brazed onto the teeth. These tips keep the edge sharp longer, especially when cutting wood.
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Best For:
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Cutting thick woody weeds, shrubs, and bushes.
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Clearing dense, tough brush that a 3T or 4T blade struggles with.
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Felling and bucking small trees and saplings up to a certain diameter (usually 1-2 inches, depending on your machine’s power).
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