TNT Knives Big BangThe first Toni Titzel designThin hollow-ground blade for perfect cutting performance and everyday usabilitySemi-integral handle designTitanium framelock folder A little big big bang - The Big Bang from TNT Knives TNT stands for Toni Nikolas Tietzel, who was nicknamed "TNT" at school - inspired by "trinitrotoluene", an explosive. This nickname became the symbol of his brand TNT Knives.