EZARC Reciprocating Saw Blade Bi-Metal Cobalt Sabre Saw Blades for Metal Cutting 225mm 14TPI R922PM 25pcsLong Life Teeth Teeth made of bI metal with 8% Cobalt which makes EZARC reciprocating saw blades with 2times longer life comparing with normal bi metal blades without cobalt. Metal Master Hard cobalt edge provide effortless cutting into sheet metal, metal pipe and profile. Cutting Capacity Blades cut through medium to thick sheet metals 3 8 mm, solid pipes profiles diameter < 175mm. Optimized Design 0. 9 thin wall and set teeth design helps to reduce