6" L x 7 TPI Reciprocating Saw BladeMfr #: 48 00 5561 Constructed with a 7 Tpi design and a unique carbide blend for quick starts and clean cuts, allows easy material ejection, TORCH NITRUS CARBIDE blades are designed to last longer and cut the fastest in cast iron SML pipes and other thick metals. Heavy duty 1. 27mm thick blade body for precise straight cuts. 25mm blade height for better stability and minimum vibration.. Better performance in all thick metals and cast iron pipes.