Sherline offers 3-jaw and 4-jaw self-centering chucks as well as 4-jaw independent chucks that thread onto Sherline's optional ER-16 headstock spindle. They also work on the Taig ER16 spindle. If purchasing any of these chucks for use on a non-Sherline ER-16 spindle, confirm that the spindle nose thread is 22 x 1.5 mm before purchasing. The Sherline chuck has a collar that is machined flat at the back to seat against the face of the Sherline ER-16 spindle. This may not be compatible with some non-Sherline ER-16 collet adapters or industrial tool holders. Run-out accuracy cannot be guaranteed unless used with a Sherline spindle.
NOTE: The chuck should not be used in applications where spindle speed exceeds 3,000 RPM.