Cut through wood, nail embedded wood, thick metal, medium metals, and thin metal with the LENOX Tools General Purpose Reciprocating Saw Blade Kit. This kit gives you 15 6 inch blades and lets you choose from three tooth counts: 6 TPI, 14 TPI, and 18 TPI. Power Blast Technology high speed blasting along the cutting edge strengthens each blade to reduce breaks. Additionally, T2 Technology optimized tooth geometry reduces cutting forces on each tooth and optimizes chip removal to allow efficient cutting in the widest range of materials.