Metal Reciprocating Saw Blades – incorporate bi-metal construction, reinforced pair-setting teeth and thin-kerf .035 In. bodies for pro-quality high-performance blades Bi-metal material – delivers a durable cutting edge for outstanding blade toughness Designed for sheet metal – features 18 TPI with a 0° hook angle for clean cuts in ferrous and non-ferrous sheet metal (10 – 16 gauge) Pair-setting tooth geometry – designed with two teeth facing left followed by two teeth facing right, for fast cuts and long life Flexible 0.035 In. thin blade body – provide accurate cuts, easier starts and reduced breakage Optimized 3/4 In. blade height – helps to deliver straight cuts Specialized metal-cutting design – featuring 3⁰ tilt angle for faster cuts and an optimized TPI count for the metal thickness