Master Mechanic, 2 Pack, 12" x 10/14 TPI, Bi-Metal, Reciprocating Saw Blade, 1/2" Shank, All Purpose, Shatterproof, Bi-Metal Construction For Flexibility, Cobalt Content & Matrix II Cutting Edge Reduces Heat & Wear Resistance, Designed To Cut Stainless Steel, Wood, Pipe & Conduit, Clamshell Package.