The MILWAUKEE 12 6 TPI WRECKER with Carbide Teeth SAWZALL Blade 5 Pack is the most versatile carbide blade on the market. These multi-material SAWZALL blades offer up to 50X more life vs. bi-metal reciprocating saw blades available today. The Milwaukee WRECKER blade offers a 6 TPI design, which allows for cutting into a wide variety of materials from clean wood to cast iron for quick demolition and remodeling work. The Fang Tip Design allows for faster plunge cuts into wood materials. Milwaukee Carbide Teeth products cut longer, cut more, and cut faster than other carbide-teeth blades on the market.