Black Fox FX-518 Dragotac Orange 01FX114. The extremely simple design of the mechanism does away with any form of locking or spring and features a freely hinged blade. The exposed blade spike when closed is not only used to easily deploy the blade but represents a thumb rest when used thus providing a level of operational safety similar to a lockable knife. Bastinelli applies this century-old principle to a modern day pocket knife that without question meets the demands placed on a modern day tool for everyday use. Specifications for Black Fox FX-518 Slim Dragotac Folding Knife Friction Folder Klingensporn: Manufacturer: Black Fox Blade Length: 3.1 in Blade Material: N690 Knife Application: Folding Blade Overall Length: 7.3 in Handle Material: FRN (Fiberglass-Reinforced Nylon) Blade Thickness: 0.1 in Lock Type: Friction Folder Handle Color: Orange Weight: 1.6 oz Opening Method: Blade Tang Manual Quantity: 1 Color: Orange Package Contents: Black Fox FX-518 Slim Dragotac Folding Knife Friction Folder Klingensporn Black Fox 01FX114: FX-518 Dragotac Orange