What is the quick release feature?

	The quick release feature is an additional mechanism that allows you to open the vise jaws with one simple movement. Vices with this feature may also be referred to as "quick" or "cam" vices.
	Many types of vises, including metalworking, woodworking and machine tools, are available with a quick release feature.
	Keyless vices have a unique mechanism that includes a split nut. The nut holds the threaded screw and is located inside the vise main body.
	The split nut can be removed using a lever or handle, thereby unlocking the main screw and allowing quick adjustment of the movable jaw. When the jaws are in the right position, the nut re-engages and holds the screw firmly in place.
	This mechanism greatly speeds up the clamping process and saves the user from the time-consuming manual tightening and loosening of the jaws that is required when using a screw vice.
with lever
	Some quick release vises are available with a simple lever, also known as a "trigger". The mechanism works because a spring-loaded lever is connected to a rod that releases the nut and unlocks the threaded screw, allowing the jaws to open quickly.
	To use the quick release on a lever vise, simply squeeze the top of the lever while pulling it towards the handle so the front jaw can slide in or out.
manually operated
	Other quick release vises have a built-in mechanism that is activated by turning the handle. They are designed to be operated with one hand, so that the user can hold the workpiece with one hand while adjusting the jaws with the other. This vise is operated with one hand as the nut either engages or disengages depending on the direction in which the handle is turned.
	To use the quick release mechanism on a vise with a handle, turn the knob 180 degrees counterclockwise to quickly open the jaws, or similarly clockwise to close the jaws.