Description 10 in. 18, 24 and 32-TPI Bi-Metal Hacksaw Blade (3-Pack)Bi-metal construction: Increases blade durability.Versatile Cutting: Ability to cut the majority of metals.Includes: 18, 24, and 32 TPI blades.Best Initial Sharpness: Designed for optimal performance.Pack Size: 3.Replacement Blade Type: Hacksaw Blades.Returnable: 90-Day.Teeth Per Inch: 32 TPI.Tools Product Type: Hand Tool.