The 5.11 Tactical Series Tarani Karambit Utility Knife with Black Teflon Coating. When you need the service of a high quality tactical knife you can depend on 5.11 Tactical Series to give you exceptional functionality at a great price. Don't spend another day without this Karambit Utility Blade at your side. SELECT SPECS: --S30V Crucible blade steel Black Teflon® finish. -Built as specified by Steve Tarani. -6 1/2" overall length. -3/16 in. blade thickness -Includes sheath with neck chain and pull-the-dot loops for inside-the-waist-belt wear.