A surgical tool device for effecting implantation of an implant such as an acetabular cup during a hip replacement surgery is described. The surgical tool holder has a strike plate, a body, a proximal fixed handle, a distal rotate handle, an insert handle with threads, an impactor head, a shaft, the shaft pin, a shaft ring, and a spring. In use, when a surgical implant device is threaded onto the shaft, the surgeon merely rotates the assembly comprising the distal rotate handle and the insert handle with threads in one direction, which causes a distal threaded area of the shaft to rotate in a second, opposite direction to act as a lock-nut for the surgical implant. This movement simultaneously pulls the shaft toward the surgical tool holder proximal end. The pulling motion ensures the surgical implant device is positioned against the impactor head's contacting surface to provide a rigid assembly for good tactile feel during the implantation of the cup.
