Master Mechanic, 2 Pack, 9" x 6 TPI, Bi-Metal, Reciprocating Saw Blade , 1/2" Shank, Wood Taper, Cobalt Content & Matrix II Cutting Edge Greatly Reduces Heat & Wear Resistance When Cutting In Wood & Metal Applications, Designed To Cut Stainless Steel, Wood, Pipe & Conduit, Carded.