Keith Nix Knives, Black Mountain NC. Keith Nix is a native NC Knife Maker in Black Mountain. We make Custom Kitchen Knives for home cooks or professional chefs, handmade knives, and custom chefs knives and outdoor knives right here in town. The Knife Shop and Black Mountain Knifeworks are located only a few minutes from Asheville (20 minutes), Marion (25 minutes), or Hendersonville (45 minutes from). Professional Hand Sharpening Service, knife edge and tip repair also available. Get in Touch!