Extrema Ratio BF2 CT Desert Warfare EX0146DW Review Posted: January 15, 2018 Under: Knives & Tools By CheapPie no Comments 5″ closed. 3.25″ Bohler N690 stainless tanto blade. Desert tan anodized aluminum handle. Pocket clip. Thumb stud. Desert Warfare laser engraved blade. Boxed.