work bench and vise
Small, usually folding, worktable whose top surface (tray) is composed of two adjustable jaws for clamping objects.
jaws 
The parts of the working surface that spread apart or close together to clamp one or more objects.
crank 
Handle for regulating the jaws’ gap. The two ends of the jaws can be adjusted independently in order to clamp a part at an angle.
working surface 
Large flat surface with two jaws forming a clamp, which supports the objects to be worked on as well as various tools and accessories.
peg 
Detachable part inserted into one of the openings on the work surface to clamp an object between its jaws.