ZT Zero Tolerance 0990 is an impressive ZT Originals it's design based on the 0999. The skeletonized construction and cutout windows, this knife has a strong, durable build. The carbon fiber handle has been coupled with a steel overlay with a bead blasted finish. The spear point blade is made of CPM-20CV stainless steel with a stonewash finish. The inset liner lock perfect conceals the blade that rides on a smooth KVT ball bearing. To top it all off, a stainless steel reversible, tip-up, deep-carry pocket clip.