... Nitride)This is an excellent PVD coating for protecting saw blades form wear,which is a good choice for ironbased materials ... .Teeth shape of piper cutter circular saw bladeMeral Circular saw Blades Are Ground,According To Their Application,With Different Kinds Of ... .. Tooth Form "A" And "AW"For thin Metal Slitting Saw Blades with a tooth pitch up to approx 3.0mm Advisable ...