Pressure-adjusting apparatus for vise

A pressure-adjusting apparatus for vise, adapted for being installed on a vise having a first receiving hole, the pressure-adjusting apparatus for vise including:

• a bolt, defining an axial direction and a radial direction, the bolt having a first end and an opposite second end along the axial direction, the first end of the bolt being adapted for disposal in the first receiving hole of the vise, the bolt being formed with a plurality of positioning holes on a peripheral face thereof near the second end;
• a pressure-adjusting element, sleeved onto the second end of the bolt, the pressure-adjusting element being non-rotatable with respect to the bolt, the pressure-adjusting element being movable with respect to the axial direction so as to change a distance between the pressure-adjusting element and the vise, the pressure-adjusting element having at least one positioning structure, the positioning structure including a positioning element and a first elastic element, the first elastic element pushing the positioning element toward the bolt, the positioning element being able to alternatively insert into one of the positioning holes to abut against the bolt.