5 Pack 8-Inch 8/12 TPI Ice Hardened SAWZALL Blades - Durable Metal Cutting Blades for Wood, Metal, PVC & Demolition - Ideal for Construction, Renovation & DIY Projects

Ice hardened blades are cryogenically treated to minimize soft metal and create more hard metal. The result is a metal cutting blade that is more consistently hard throughout, for up to 50% longer life than standard blades.