Diablo’s jig saw blades are designed for superior performance and longer cutting life in wood, metal and plastics. This 10-piece set features a range of blades, including bi-metal for clean wood, nail-embedded wood, metal and plastics; high carbon steel for soft woods, and high speed steel for metal. Each blade included in this set is optimized to deliver effortless, clean cuts. T-shank design fits all combo and most U-shank cordless and corded jig saws. 10-Piece Wood and Metal Set provides up to 25% in savings. Optimized body designs for fast, clean cuts in wood and longer cutting life in metals Includes (1) DJT101BR 4" 10TPI High Carbon Steel Blade for Wood (2) DJT101AO 3-1/4" 20TPI High Carbon Steel Blade for Wood (1) DJT101D 4" 6TPI High Carbon Steel Blade for Wood (3) DJT101B 4" 10TPI High Carbon Steel Blade for Wood (1) DJT345XF 5-1/4" 5/10TPI Bi-Metal Blade for General Purpose Cuts (1) DJT121AF 3-5/8" 21TPI Bi-Metal Blade for Medium Metal (1/16"-1/8") (1) DJT121BF 3-5/8" 12TPI Bi-Metal Blade for Thick Metal (1/8"-1/4"). T-shank design fits all combo and most U-shank jig saws. Maximum performance in cordless and corded jig saws