【UNIQUE FIXTURE GROOVED JAW】This table vise comes with a extra multi-functional jaws which add 10 screw holes and 4 clamping posts to help you handle delicate irregularities easily. The serrated jaws are also made of hardened steel for a more durable gripping surface. 【HIGH QUALITY FORGED STEEL CONSTRUCTION】Made of industrial strength steel constructionwhich increases the durability and longevity. The surface is sprayed to enhance corrosion-resistance and to make it more smooth to the touch. Maximum opening of jaw is up to 2.79'', jaw width 3.2''. 【360° SWIVEL CLAMPS-ON VISE】The swivel base of the vise can be rotated by 360 degrees for extra versatility, allows for optimal work placement and flexibility. Polishing lead screw and guide rail are upgraded to achieve high precision and high hardness. 【DUAL-PURPOSE COMBINATION】This vise can be screwed firmly to the workbench or table with screws, it can also be conveniently clamped on the workbench as well. Base clamping range increases to 4 inch(100mm) , suitable for workbenches of various thicknesses, which is designed for home, workshop, professional use, general purpose and light work. 【ONE-CLICK POSITION】Press on the quick release button, and push the jaws together to be quick position and clamp, no need to turn the screw to move slowly. Don’t worry about machine accuracy deviation!, Weight: 11.0231131 pounds, Manufacturer: Elemake