How do I choose between Carbon Steel, Bi-Metal, and Tungsten Carbide blades?

Carbon steel blades are usually the best choice for sawing wood, plastic, aluminum, and similar easy-to-cut materials.

Bi-Metal blades have the best balance of heat resistance, wear resistance, and chip resistance to productively saw most steels and other metals.

Tungsten Carbide blades provide superior heat and wear resistance for sawing extremely tough metals or very abrasive metals and non-metals.