A vise includes a stationary jaw at one end of a rail and including a moveable jaw member having a clamping surface, and a lever having a cam at one end engaged with the jaw member; and a moveable jaw on the rail and including a moveable member engaging with a limit member at the other end of the rail; a jaw element having one end secured to the moveable member and having a clamping surface at the other end, an internal moveable wedge secured to the clamping surface of the jaw element and having first and second inclined surfaces; two opposite arms pivotably secured to the moveable member wherein one ends of the arms contact each other and engage with the first and second inclined surfaces respectively, and each arm has a cavity on an outer edge; and two urging blocks complimentarily engaging the arms respectively.
1. A vise, comprising:
a rail, wherein the rail includes two inner side surfaces;
a stationary jaw secured to one end of the rail and including a receptacle, a moveable jaw member partially disposed in the receptacle and having a clamping surface, and a lever having a cam at one end engaged with an end of the moveable jaw member;
a limit member disposed at the other end of the rail; and
a moveable jaw moveably disposed on the rail and including a moveable member engaging with the limit member in an inoperative position; a jaw element having one end secured to the moveable member and having a clamping surface at the other end, an internal moveable wedge secured to the clamping surface of the jaw element and having a first inclined surface and a second inclined surface; two opposite arms pivotably secured to the moveable member wherein one end of each of the arms contact each other and said one end of each of the arms each respectively engage with one of the first inclined surface and the second inclined surface, and each arm has a cavity on an outer edge of said arm; and two urging blocks having a projection each complimentarily engaging a respective cavity wherein an outer edge of each urging block engages a respective one of said inner side surfaces of the rail.