Stainless Steel 410 J1 Drop Forging, Brazed Tungsten Carbide insert, Ergonomic hand finished design, Designed for hand/grip comfort, Internally spring loaded for easy operation, Lightweight, Designed to fit the Toit Leather Sheath (sold separately), Environmentally friendly product, no rubber/plastic/silicone handle, All metal design No plastic to fall off, shrink or get damaged, Highly polished surface finish, Fixed insert to prevent moving, stable cutting edge. Not recomended for cutting Braid or Multi Strand Cable or Fishing hooks.