2 Pack, 3-1/4", Hi-Carbon Steel, 20TPI, T-Shank, Jigsaw Blade, Greater Precision, Super Sharp To Cut Fast Without Deflection, Smoother Finish, Ground To Precision, Sharpness For Straighter Cuts & A Smoother Finish, Ideal For Woodworking: Designed For Optimal Performance In Wood Cutting, Including Hardwoods.