The NO. 4 is a compact folder built around a 2.63" SK5 carbon steel blade hardened to HRC 60, delivering edge retention and ease of sharpening in a slim 3.63" closed package. The extended tang construction paired with a black stainless handle provides solid lockup and durability without unnecessary bulk, making it ideal for EDC or general cutting tasks. A lanyard hole adds retention options for those who want one. SK5 carbon steel demands regular maintenance to prevent patina, but rewards that care with excellent edge geometry and workability.

3.63" closed. 2.63" SK5 carbon steel blade. Black stainless handle. Extended tang. Lanyard hole. HRC 60. Bulk packed.