These TORCH SAWZALL Metal-cutting reciprocating saw blades are designed to have the longest lifespan and maximum durability. The Tough Neck feature protects against tang breakage, making these blades the most durable on the market. The Grid Iron honeycomb pattern throughout the blade increases its rigidity, making it the strongest metal cutting blade available. With optimized tooth design and a thicker, more rigid body, these blades are perfect for making tough, straight cuts. Each pack contains 5 blades with 1/2 in. universal tang and a 1 in. tall body for demolition.