What is a quick release chuck?

	Some cordless screwdrivers are equipped with a keyless chuck (also called a quick change chuck).
	Like the magnetic bit holder, the keyless chuck has a magnet at the base that connects to the shank of the screwdriver bit. Plus, it has 2 metal ball bearings inside that hold it securely in place.
What bits can it accept?
	Keyless chucks always have a hex slot, which means they can only work with hex shank bits. In order for a screwdriver or drill to sit securely in the chuck, it must be the right size. Read more about this in our section: What is cartridge size?
	Specially shaped bits called "power bits" were developed for use in keyless chucks. Power bits have a groove in the body (called the Power groove) that interacts with the metal balls inside the keyless chuck and helps hold the bit in place even more securely.
How to insert or remove a beat
	There are several different designs of keyless chucks. How you insert and remove bits depends on the make and model of your instrument.
	Bit insert Most keyless chucks allow bits to be inserted by simply inserting them into the chuck like a magnetic bit holder.
	Removal is complete Each keyless chuck has a spring loaded outer sleeve that controls the position of the ball bearings inside. To remove the bit from the chuck, you push back or pull forward on the outer sleeve, which will pull the ball bearings in, allowing you to remove the bit. Whether you push or pull on the outer sleeve depends on the make and model of your tool.
benefits
	Compared to a magnetic bit holder, the keyless chuck holds the bits more securely because it uses metal balls to hold the bits in place, as well as a magnet.
Disadvantages of a no deposit bonus
	Despite its name, it takes slightly longer to switch between bits when using a keyless chuck than when using a magnetic bit holder.