Cool cutting action with long life and minimal melting of aluminum.Fast, burr free cutting., Blades must be run in the direction of the arrow as indicated on the blade.Designed for use on professional metal-cutting saws.Premium micro grain carbide; Smaller grains mean more carbide per tooth - stay sharp and provides longer life over competitive blades.Cuts cool and fast.Metal blades cut cleanly with minimal sparks. Reduced fire hazards and less dust.Metal Cutting Carbide Blades Technical Information.