A full tang is a tang that runs the entire length and close to the full width of the handle, with the handle scales bolted or pinned to either side of it. It is the strongest common fixed-blade construction, and you can usually see the steel as a stripe around the handle’s edge.
Look at the handle side-on. If a line of bare metal runs along the top and bottom of the grip, and the same metal shows at the butt, the tang is full. The two handle halves, called scales, are separate pieces fastened to the steel rather than a sleeve the steel slides into. It is in the parts of a fixed blade that these join the other pieces.
Some makers taper a full tang toward the butt to cut weight. That is still a full tang. What matters is that steel is present for the whole handle, not that it stays the same thickness.
There is no point along the grip where the cross-section suddenly drops, so there is no obvious place for the knife to break under a sideways load. That is why full tang is the standard call for camp knives, hunting knives and anything a buyer expects to baton or pry with occasionally.
The trade is weight and cost. A full tang carries more steel than a rod tang doing the same cutting, and it takes more machining. For a fillet knife or a light kitchen knife, that extra steel is dead weight.
The term is not academic here. 94 of the products currently on our shelves describe this feature in their own manufacturer specifications, across all nine brands we stock. Examples in stock right now include Böker Arbolito Esculta Stag, Böker Arbolito Guides Combo, Case Steak Knife Set Walnut.
Everything below is pulled live from the catalog, so what you see is what is actually in the Woodlawn warehouse today.