Recip Blade 6"x 6TPI 150mm Wood ASL Industries Metal Cutting Blades Total Tools 6 in. 24 TPI Bi metal Reciprocating Saw Blades, 3 Pack Metal Cutting Blades Total Tools 12 in. Bi Metal Recip Blade for Thick Metal Demolition (3 16 in. to 9. Full Contact Arched Design provides more working teeth within the material for faster cuts in fewer passes resulting in less heat build up to deliver 5x longer cutting performance 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