NIB Case Cutlery Linerlock TecX TS-1 Black Aluminum (3.50" Satin) The Case TecX TS-1 Linerlock is a sleek and dependable folding knife designed for everyday performance. It features a 3.50-inch satin finish stainless steel blade, offering a sharp edge and reliable durability for a variety of cutting tasks. Closed, the knife measures 4.5 inches (11.43 cm) and is built with a robust black aluminum handle that provides a secure, lightweight grip. A thumb stud ensures quick, one-handed blade deployment, while the linerlock mechanism keeps the blade safely locked during use. Outfitted with a pocket clip, lanyard hole, and attachment clip, the TS-1 is built for versatile, on-the-go carry—ideal for everyday use or as part of your EDC gear.