Whetstone Cutlery 2 Piece Set of Dark Tactician Folding Knives The Tactician Tactical Knife Set of 2 Knives The Dark Tanto Folder 3 inch blade, black finished 440 stainless steel tanto style blade, quick opening thumb stud. Brushed metal finish, a heavy duty pivot pin and the liner lock blade locking design. Closed length of 4 1/2 inches and durable pocket clip. This stainless steel super knife features a spring assisted blade and securely locks into place and also a convenient belt clipe.