DS0908BFD25 Diablo 9 in Bi-Metal Recip Blade for Metal Demolition (25 pk)Diablos reciprocating saw blades are specifically designed for maximum performance in metal demolition applications. The blades ultra hardened cutting edge delivers up to five times longer life than those of standard blades. Dual Tooth design features a double tooth configuration with small gullets for faster material removal and extra durability. Perma-shield coating protects the blade from heat, gumming, and corrosion Thick demolition blade body for extreme durability Ultra hardened edge increases the hardness of the cutting edge to a Rockwell Hardness of HRC 62 versus HRC 55 for standard blades Length : 9 in TPI : 8/10 Tooth Design : Dual Tooth Package Quantity : 25 Pack