Specially formulated, tough c-6 carbide tipped blade fits all popular brands of portable circular saws. Lasts up to 30 times longer than abrasive disks for cutting unhardened ferrous metal. Makes true, flat cuts in standing seam metal roofing and metal building panels without burning paint or protective coatings. Also makes clean cuts in metal studs, light angle iron and thin walled pipe. Available in one model, MCCB7, sized at 7-1/4 in. (184 mm).