These very popular circular saw blades from Shark Blades are made from hardened tempered steel with a ground polished finish and have 60 strong tungsten carbide teeth that will give you a very clean cut in most woods and plastics. The teeth are a postive rake with ATB (alternative top bevel) tip that ensures the finish is of the typical trade quality that most trades expect from Shark Blades. They are perfect for cutting Woods, wood laminates, Hard woods, soft woods, plaster board, plastics, fibreglass plus much more. Perfect for hand held circular saws