Sherline 2285 Quick-change 3/8 in Tool Holder
One of these toolholders is included with the P/N 2250
quick-change tool post system. If you are working with boring tools
of different sizes or depths that you would like to have
pre-installed in interchangeable tool holders to take full
advantage of the quick-change nature of the system, it would be a
desirable to have at least one extra holder on hand.