Woodwork vices are available with jaws of different widths, ranging from light-duty models to heavy-duty models. In order to be in proportion, the whole of the vice gets bigger as the width of the jaws increases.
The following dimensions apply to all types of woodwork vice.
Weight
Woodwork vices can range in weight, from 6 lbs to 40 lbs (2.5-18 kg approx.), depending on the size of the tool.
Jaw width
The jaw width is how wide the jaws are from one side to another and is measured by the horizontal distance along the top of the jaw edge.
Smallest available: 150mm (6″ approx.)
Largest available: 265mm (10.5″ approx.)
Jaw opening
The jaw opening of a vice is how far the mouth of the jaws can open.
Smallest available: 115mm (4.5″ approx.)
Largest available: 380mm (15″ approx.)
Throat depth
The throat depth is how deep the jaws of a vice are and is measured by the vertical distance from the top edge of the jaws down to the top of the screw.
Smallest available: 50mm (2″ approx.)
Largest available: 100mm (4″ approx.)
Clamp opening
The clamp opening is how wide the integrated clamp will open, when fitting onto the edge of a workbench.
The clamp on portable woodwork vices opens up to 55mm (2″ approx.), and so this is the maximum thickness that the edge of a workbench can be in order to fit into the clamp opening.
How to choose a woodwork vice
The smallest types of woodwork vice tend to be the woodcraft models, as they are designed for light-duty domestic use, such as model making and light carpentry. Plain screw and quick-release woodwork vices are bigger in size and, therefore, designed for heavier-duty work. They would be ideal for tasks that involve clamping larger and heavier objects, such as wooden beams or fencing.
The size of the vice needed depends on the shape and size of the workpiece at hand. If a user wishes to clamp large and heavy pieces of wood, then a vice with a greater jaw width/opening and throat depth would be useful, as they have a greater capacity than smaller vices. This is due to their design, which allows them to hold longer or wider objects with less risk of breakage.