The VER-26977 is a Punch and Anvil Set, used to fix 10mm studs or 10mm sockets to mats. Earth grounding points on bench and floor mats are used to connect ground cords, these must be riveted through the mat material. The Vermason 230660 J5265 punch and anvil are simple but effective tools to achieve a neat finish with firm materials, no thicker than 4mm. Both tools are made of mild steel with a bright zinc and passivated finish. The 10mm-stud-and-post set creates earth grounding points on bench and floor mats to which to connect ground cords.