2-3/4-Inch Jaw width vise mounts to any smooth surface, (laminate, steel, granite). Vise swivels 360-Degree and can pivot 90-Degree. Ball and socket mechanism allows vise to be positioned in the most convenient position for working on small parts. Vise head can be easily rotated or pivoted to allow working on opposite sides of small part without removing the part from the vise jaws. Threaded collar locks ball and socket in place easily. Vacuum base securely attaches the vise to smooth work surfaces, laminate, steel, and granite are examples. Surface must be smooth, wood grain surface an -Inch pebbeled -Inch surfaces are not suitable. Soft vise jaws are included for holding parts without marring. Vise jaws close in parallel on double guide bar design. Body parts are precision die cast. Vacuum base is operated with steel lever to actuate vacuum. Rubber vacuum base should cleaned regularly to remove dust with a clean cloth and water. A small amount of water can be applied to the rubber vacuum surface for best vacuum hoding force.