Diablo, 5 Pack, 12", 8/10 TPI , Bi-Metal Reciprocating Saw Blade, Slice Through Metal 1/8" To 1/2" Thick, Constructed With A 1" Tall Rigid Body To Foster Straight Cuts, Blades Feature Dual Tooth Configuration With Small Gullets For Extra Durability & Efficient Debris Expulsion, Bi-Metal Construction Gives The Blades Utmost Durability & Perma-Shield Coating Reduces Drag For Smooth Operation In Rugged Applications.