★ Bi-METAL WITH 8% COBALT: Made of M42 with 8% cobalt for the teeth and D6A metal for the blade body. Compared with other bi-metal saw blades that are easy to break and bend, the cobalt-containing M42 blade maintains high hardness even at high temperatures, they go through metal like butter! ★ CUTTING RANGE: With high-density 14TPI teeth, it’s designed for cutting thin to medium-thick metal. Easily cut metal plates, steel pipes, solid tubes/profiles, as well as nails, bolts, etc. on wood. The blade can cut metal plates with a diameter of 0.1-0.31 in (3-8 mm) and solid tubes/profiles with a diameter less than 7 in (175 mm). ★ OPTIMIZED DESIGN: 0.9 mm flexible thin blade, which is not easy to break, and set teeth design, which helps to reduce heat accumulation. In addition, our blades teeth are processed by high-precision equipment to cut accurately and smoothly, burr-free, maximizing the efficiency of heavy metal cutting. ★ NEW UPGRADED TECHNOLOGY: New heat treatment process, high precision control quenching treatment, higher hardness. Upgraded anti-friction coating technology, to protect the saw blade and improve wear resistance and pressure resistance, effectively improve the cutting life of the saw blade. ★ UNIVERSAL COMPATIBILITY: The reciprocating saw blade adopts 1/2-inch shank, which is suitable for mainstream saw tools on the market, including Bosch, Dewalt, Milwaukee, Makita, Ridgid, Black & Decker, Ryobi, Porter Cable, Hitachi and more. reciprocating saw blades saw zall blades 14TPI 9INCH 10 Pack, metal saw zall blades metal reciprocating saw blades saw saw blades reciprocal saw blades saw zall blades metal cutting saw zall blades assortment