Kershaw Zero Tolerance is a high quality military combat series produced by Kershaw Knives. The Zero Tolerance knives are overbuilt serious knives that reach professional grade standards. Zero Tolerance uses high quality components, such as S30V blade steel, titanium for their frame locks and machined G10 for their handles. Zero Tolerance knives are made to be dependable hard use knives and hold up to their name. Knife makers, Ken Onion and Mick Strider helped to design many of the most popular items.