Patent ID: 8777230

Claim:
An apparatus for securing a tool to a spindle of a machine in a tool-less manner, said apparatus comprising: an axially-extending body portion having a proximal flange portion and a distal knob portion, said body portion including an axially-extending internal bore; a plurality of radially-extending openings spaced about said body portion and being axially located on said body portion between said flange portion and said distal knob portion; a ball residing in and movable within each of said openings between a radially outward position and an inward position; an internal plunger residing in and movable within said internal bore between an advanced position and a retracted position; wherein said advanced position provides a first diameter of said plunger adjacent to and in contact with said balls whereby said balls are urged to said radially outward position, and wherein said retracted position provides a second diameter of said plunger adjacent said balls whereby said balls are movable to said inward position; wherein said plunger further includes a first end and a second end with a knob for effecting movement of said plunger being located at said first end and axially outward of said flange and said first and second diameters being located near to said second end.