These ER16 collet chucks were custom made for a customer’s drawings.
The longer units are a Jacobs #6 (J6) mount.
The shorter ones are a solid 1/2″ shaft.
All are using a special ER16 mini nut that has the ability to be tightened and taken off via a hex nut. These nuts differ from standard ER16A or ER16 hex nuts in that they allow the customer to use this chuck in a narrow passageway where the standard nut would not fit.
AutoDrill can offer custom collet chucks in ER8, ER11, ER16, ER20, ER25, ER32 and ER40. Specials can be ordered with ASA, Automotive, Shaft Bore such as Weldon, ER50 and other options. We can offer special lengths, diameters, shoulders, threads, etc. If you think you need something made, we would love to attempt to quote it for you.
Please CONTACT US to discuss your application and receive prompt product cost, literature and technical help.