PUSH-TO-START SCREWDRIVER THIS MODEL OPERATES BY SIMPLY PRESSING THE SCREWDRIVER DOWN ON THE SCREW. SELECT THE PROPER TYPE ACCORDING TO THE TIGHTENING WORK TO BE DONE. AVALIABLE MODELS: CL-3000PS, CL-4000PS, CL-6000PS, CL-6500PS, CL-7000PS, -4500PS AND -6500PS.