Cool cutting action for minimal discoloration.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.