Bosch Metal Reciprocating Saw Blades feature bi-metal construction, delivering maximum life and durability. These blades feature reinforced pair-setting teeth are optimized for metal cutting, for fast cuts and long life. The blades are constructed with a flexible 0.035 In. bodies that resists breakage, and they have a 3/4 In. blade height for straight cuts. The metal cutting range covers wide range of metal material from thin metal to thick metal. The metal cutting blades are available in various blade lengths (6 In., 9 In. and 12 In.) and with multiple TPI options (14, 18 and 24 TPI). By incorporating high-quality materials, best manufacturing processes and jobsite proven tooth design, Bosch offers pro-grade reciprocating saw blades that cut faster and last longer.