Ideal for heavy duty cutting, scoring and chiseling of materials such as balsa, wood, linoleum and clay, these #18 replacement blades from X-Acto are an extremely versatile cutting tool. Paired with a corresponding handle, these chisel blades made from corrosion-resistant carbon steel will make a handy addition to your crafting toolkit.Details:#18 heavyweight chisel blades1/2" (1.27 cm) cutting edge5.375" x 1.75" (13.65cm x 4.45cm) package size5 bladesCorrosion and rust resistantCarbon steelFor use with corresponding X-Acto knife handle (sold separately)For deep cross and smooth wood chiseling