L.S.T Cutting Knife. Brand: Gerber. 46009. The Gerber L.S.T. is the smoothest of operators. With a mechanical action that just feels good and satisfying when you open and close the blade, which happens to be made of 400 series stainless steel . But let"s get back to the topic of lightweight performance. The heaviest of the four legendary L.S.T. models musters a mere 1.2 ounces on the scales. Yet, when you feel that easy grip, there"s no question that Pete Gerber"s big idea is one for the ages.. UPC: 13658460096