the clamps can not come loose even under light vibration

Pony hand clamps feature an innovative box‑joint design that prevents twisting and keeps the jaws square and straight

Secure for holding slides in place as you work

Excludes batteries and charger

Pony 4" x 7" Woodworkers Vice AC27091 5903 the clamps can not comeThe Pony Woodworker's Vise is for medium duty home, shop or professional use. It is designed to mount to the side face of wood work benches. 9 inch opening capacity 7 inch jaw width Designed to mount to the face of wood work benches Vise is for medium duty home, shop or professional use The front jaw features a solid steel dog in the front jaw Technical Data Part No. Width Height Jaw Opening #27091 7 inch 3 inch 8 inch 178 mm 75 mm 203 mm Includes 1x