8 High Precision 4-Jaw Lathe Chuck, D1-4 Mount. (You are purchasing a brand new 8 High Precision 4-Jaw Chuck w/D1-4 Back Plate in it’s packaging, the unit shown above was unpackaged and set up for photos). Very High Quality lathe chuck. Higher precision than anything you will find near this price. A big upgrade from most standard lathe chucks, but a very reasonable price. Precision Balanced for better running. Removable / Reversible Jaws for ID and OD Work. D1-4 Camlock Mounting built in to the chuck, no need for additional back plate. Complete with chuck wrench. Average time delivered is 2-7 days depending on how far from Pittsburgh you are located. Quality Machine Tools / Precision Matthews Machinery Co. 1060 Montour West Industrial Park. We are machinists here too and have been in business for over 20 years. We know our machines and we know what we sell. So if there is any question, we can help.