Microtech Ultratech OTF knives are back. We just got several new variations of the Microtech Ultratech into the store and are receiving another 4 variations today or tomorrow sometime. If you have been looking to get one of the extremely popular, and in my mind one of the best ever, otf knives–get it quick. In my mind, the Ultratech is one of the very best OTF knives you are going to find in production. Made with classic, thin lines and nearly unbelievable tolerances, the Ultratech performs at the top of it’s class.