Milwaukee 48-00-5185 Super Sawzall Blade 24 Teeth per Inch 4-Inch Length The product is easy to use The product is durable The product is manufactured in United States 24 TPI, 4 in. Length, Bi-Metal Construction 1/2 in. Universal Tang fits all Sawzalls 5 blades per pouch For cutting metal thinner than 1/8 in., tubing, pipe, and trim.