VG10 - What makes VG10 so good?
(Many of the Japanese knives will be a high carbon steel wrapped in stainless/Damascus for the stain/rust resistance)
Tang - The term full tang means that the knife/sword is one solid piece and the 2 handle pieces are pinned on to the blade, one on each side. This is the strongest of the tang types. Half tang knives go the length of the knife handle, but only half the width of it.