GreatNeck GF51C Assorted Hacksaw Blade, 5-Pack 5 Pack Assortment includes: (2) 18 TPI, (2) 24 TPI, (1) 32 TPI Standard Hacksaw Blades Valued Priced Standard Blades Recommended for Cutting Mild Steel Fits Great Neck and Other Common Hacksaw Frames Recommended for Cutting Mild Steel Shatterproof Blade Set is Virtually Indestructible Blade Length (in) - 10 in