The Construx 24 TCT ultra-thin-kerf is for General Purpose and Framing/Trim .It has carbide tips that is designed to extend the blade's use up to 4 times longer than a standard blade .This blade can be used on multi cut saws and circular saws. it is designed for cutting wood with thin, smooth cuts. -The Construx 44T HSS blade can cut Aluminum, wood, plastic and drywall. Makes fine cuts for wood and thin metal . The Construx Diamond blade can cut ceramic tile, stone tile, backer board and cement.