All-purpose blade for cutting wood, nail embedded wood, composition materials, plastic, and nonferrous metals. (8/12TPI blades cut cast-iron also). 12" x 5/8" x .035", 10/14 TPI, 5 blades per pouch ---- 1. This does not affect the main unit. Rest assured. 2. Product **and other products made in Japan are not applicable. 3. Packaging and instructions are in English.