Selecting the correct blade material is critical for longevity and finish quality. For solid softwoods, High-Speed Steel (HSS) is often preferred for its sharpness. However, for hardwoods, MDF, or particle board, you must prioritize Tungsten Carbide Tipped (TCT) cutters, as they offer superior heat resistance and wear life. For high-volume industrial lines, Polycrystalline Diamond (PCD) tools are the gold standard, providing up to 50 times the lifespan of carbide, though at a higher initial investment.