Flame hardened bad & fully hardened jaws maintain accuracy for long.The accuracy of vice (parallelism and squareness ) is 0.02 mm.High tensile close grains cast iron body.Four positions allow extra capacity to change opening of Jaw.The special segment in the movable jaw forces the vertical pressure downward when the horizontal pressure works, so that this jaw does not lift the work piece. 

Flame hardened bad & fully hardened jaws maintain accuracy for long.The accuracy of vice (parallelism and squareness ) is 0.02 mm.High tensile close grains cast iron body.Four positions allow extra capacity to change opening of Jaw.The special segment in the movable jaw forces the vertical pressure downward when the horizontal pressure works, so that this jaw does not lift the work piece.