Milwaukee 48-01-6187 9-Inch, 14 Teeth per Inch, Super Sawzall Blades, 50-Pack The product is easy to use The product is durable The product is manufactured in United States 14 TPI, 9 in. Length, Bi-Metal Construction 1/2 in. Universal Tang fits all Sawzalls 50 blades per box For cutting metal 3/16 in. thru 1/4 in., conduit, tubing, channels, pipe, rubber, and fiber. Limited warranty