Lenox 636R Wood Bi-Metal Reciprocating Saw Blade, Pack of 25 6 x 3/4 x .050 x 6 TPI. Best for Wood Cutting LENOX invented bi-metal reciprocating saw blades and they provide industry-leading cutting performance for professional tradesmen. LENOX recip blades are available for a wide range of cutting applications. EXTENDED BLADE LIFE LENOX T2™ wood cutting reciprocating saw blades use an optimized, reinforeced tooth geometry DURABLE CONSTRUCTION Bi-metal design stands up to the most demanding applications PLUNGE CUTTING The 656R features Rapid Plunge for faster, easier plunge cuts 25 pack