Pony hold-down clamps offer the advantage of benchtop and machine-table “surface” clamping. They are designed to rotate a full 360 degrees around the holding bolt and can be used on any wood or metal surface. Our heavy-duty hold-down clamp is designed to be mounted anywhere a T-slot or machine bolt can be installed, and its unique square-head screw can be tightened with a wrench for a secure hold.