I found these in The Home Depot store but I am sure you can get them online too. This type doesn’t have the wavy corrugated edge as other metal-cutting bandsaws do. I get three bow saw blades from one of the blades and three bow saws per pack so I think maybe five years of blades. I have two bow saws and keep one for wood and the other for metal. The metal cutting saw has 18 TPI blades.