The Tagus model is Castillo's largest. It is an all-purpose model for bigger jobs. The handle has contours for fingers resulting in an improved grip. Each knife comes with a felt bag for storage. The Tagus is named after the longest river in Iberia which traverses Spain and Portugal and has played an import part in Spanish history. Blade Steel | Sandvik® 14C28N Blade Length | 3 5/8”. Handle Length | 4 3/8”. Overall Length | 8”. Blade Shape | Drop Point. Lock Style – Lock back. Grind | Hollow. Lanyard | Leather.