4.6” Assisted Opener. Utica Cutlery Company, in collaboration with Blackie Collins and Michael Collins, is proud to introduce its new triple action designed assisted opener the Rock itTM. Made in the USA. Unlike other models, the Collins Brothers Rock itTM, incorporates a revolutionary opening and locking mechanism that has 3 distinct spring operations. The Rock itTM, provides continuous spring movement throughout both the opening and closing of the knife. A uniquely designed compression spring provides safe and secure closure of the blade into the body of the knife
