"AMERICAN SAW & MFG CO" RECIPROCATING BLADEBimetal reciprocating saw blade. Length : 4" Width : 3/4 Thickness : .035 Teeth per inch : 24 Optimized for specific applications. For metal & galvanized pipe 18 gauge & under. Tuff tooth patented design provides long blade life. Shatter resistant, bi-metal design provides the flexibility and durability. Pk/5.