Patent ID: 8262327

Claim:
A tool holder adapted for use in a lathe/miller, comprising an operation barrel, a connection bar, a tool seat, and a lid, wherein the operation barrel is of a cylindrical shape having a lower end that forms an axle having a circumferential surface in which a plurality of holes is defined for receiving therein steel balls, the lid being secured to an upper end of the operation barrel, the operation barrel forming a central bore in which the connection bar is movably received, the connection bar having an upper end forming a pawl adapted to couple with a draw bar of a ram, the connection bar forming a circumferential groove that is selectively set in alignment with the holes when the connection bar is moved relative to the operation barrel, the tool seat being in the form of a hollow ring having an inner circumferential surface in which a recessed, circumferentially extending groove is formed, the groove delimited by opposite side walls and corresponding to the holes of the operation barrel.