Here are two Toolmex keyless chucks that are brand new old stock and have never been used. These chucks are 1/2" in size and are perfect for holding drill bits securely while you work. The chuck type is keyless, which means that you can easily switch out drill bits without having to worry about tightening or loosening any screws. These chucks are great for anyone who needs to do drilling work on a regular basis, especially in a business or industrial setting.