Brand: Vearter ​Metrial: M42 Bi-Metal with 8% Cobalt ​Length: 150mm (6inch) ​TPI: 10TPI ​Use: Medium-thick sheet metals (3 to 8mm), metal pipes/profiles (dia.<100mm) ​ ​1. The teeth are made of M42 BI metal with 8% cobalt, our reciprocating saw blades last 2 times longer than normal bi-metal saw blades without cobalt. ​2. The hard cobalt edge can easily cut metal wood,nail-embeddfd wood,cast iron wood beam and thick metal ​3. The blade for fast, efficient, aggressive cuts in nail-embedded wood, engineered lumber, chipboard and glass fiber-reinforced plastics < 100mm.100mm. ​4. 0.9 Thin wall and fixed tooth design help reduce heat build-up and maximize cutting efficiency. ​5. Fits all Sawzall tools on the market, including Bosch, Dewalt, Milwaukee Sawzall Saw, SKIL, Makita, Black & Decker, Ryobi, Porter Cable, Hitachi, Flex, Hilti, Metabo, etc.