The 0456 is the result of Zero Tolerance and Dmitry Sinkevich?s collaboration which is based on Dmitry?s Custom knife The Pole. This knife consists of a CPM-20CV steel blade and 3-D rayed stonewash/satin finish handle which includes a blue pocket clip and pivot. ZT?s KVT ball bearing system makes for an easy blade release by just pulling back on the flipper. The 0456 offers exceptional edge-holding performance making it a great knife to take on any escapade. Zero Tolerance had only a few things in mind when creating and designing their knives. They wanted to make them with top of the line materials as well as being able to stand up to heavy-duty use. A lot of their knives are in collaboration with top knife makers such as Rick Hinderer, Todd Rexford, Jens Anso and Dmitry Sinkevich. Zero Tolerance initially only produced combat knives but have since added a variety of everyday carrying and premium knives, built with the same ?OVERBUILT? designs as their knives that are tailored towards military and law enforcement.