Milwaukee 305mm carbide teeth for pruning and clean wood our ax with carbide teeth sawzall blades for pruning and clean wood are designed for the fastest above and below ground cutting applications. These sawzall pruning blades offer up to 50x more life vs. Carbon steel reciprocating saw blades available today. The Milwaukee ax blades for pruning and clean wood cutting offer a 3 tpi design, which allows for the fastest cutting in clean wood and a low profile blade geometry.