Premium Quality: These jigsaw blades are made with premium high carbon steel for improved quality and precise cutting.Universal Copatiable: T-shank design for maximum grip and stability.Suitable for most jigsaws on the market. Variety of Choice: Variety of tooth models for fast or fine cutting;Precision-ground teeth for clean, fast cuts in wood and plastics 【Premium Quality】 Made of HCS with SK5 high carbon steel (50 times better than CRV) for general cutting of wood materials for straight, clean and fast cuts.Made from HSS real HIGHT SPEED STEEL, perfect for cuts in hardwoods, metal, aluminum or reinforced plastic.A suitable lubricant is recommended when cutting metal. 【Package Included】5xT118A, 3xT218A, 3xT318A for thin metal cutting;2xT127D perfect for aluminum;2xT101AO SCROLL BLADE CLEAN for wood, 3xT101B, 2xT101D, 2xT301CD, 2xT301DL CLEAN for wood;3xT119BO for Curve wood cutting;5xT111C, 7xT144D, 7xT244D.2xT344D SPEED for wood. 【Compatible】 Compatible with over 90% of current jigsaws, including Bosch, DEWALT, BLACK DECKER, TACKLIFE, Makita, SKIL, Porter Cable, Ryobi and Rockwell BladeRunner X2 jigsaws, the jigsaws are a versatile addition to anyset of tools.