A tool changer for a machine tool, comprising: a shutter; at least one tool changer unit wherein the at least one tool changer unit comprises: a tool holder adapted to receive and hold a tool; a base member that supports the tool holder so that in use the tool holder can be slid along a longitudinal direction of the held tool; and a moving mechanism adapted to slide the tool holder relative to the base member, wherein the shutter is adapted to be opened and closed along a direction that intersects a forward moving path of the tool holder, wherein the tool holder is adapted to be moved forward along said longitudinal direction toward a delivery position at which the tool is delivered, and includes a holding member provided at a front end of the tool holder in a forward moving direction, wherein the holding member is adapted to sandwich and hold the tool when the tool is moved downward, and to release the tool when the tool is moved upward, and wherein the holding member is adapted to protrude outward from an opening-closing position of the shutter when set to the delivery position of the tool while a rear end of the tool held by the tool holder in the forward moving direction remains inside the opening-closing position of the shutter. a shutter; at least one tool changer unit wherein the at least one tool changer unit comprises: a tool holder adapted to receive and hold a tool; a base member that supports the tool holder so that in use the tool holder can be slid along a longitudinal direction of the held tool; and a moving mechanism adapted to slide the tool holder relative to the base member, wherein the shutter is adapted to be opened and closed along a direction that intersects a forward moving path of the tool holder, wherein the tool holder is adapted to be moved forward along said longitudinal direction toward a delivery position at which the tool is delivered, and includes a holding member provided at a front end of the tool holder in a forward moving direction, wherein the holding member is adapted to sandwich and hold the tool when the tool is moved downward, and to release the tool when the tool is moved upward, and wherein the holding member is adapted to protrude outward from an opening-closing position of the shutter when set to the delivery position of the tool while a rear end of the tool held by the tool holder in the forward moving direction remains inside the opening-closing position of the shutter. a tool holder adapted to receive and hold a tool; a base member that supports the tool holder so that in use the tool holder can be slid along a longitudinal direction of the held tool; and a moving mechanism adapted to slide the tool holder relative to the base member, wherein the shutter is adapted to be opened and closed along a direction that intersects a forward moving path of the tool holder, wherein the tool holder is adapted to be moved forward along said longitudinal direction toward a delivery position at which the tool is delivered, and includes a holding member provided at a front end of the tool holder in a forward moving direction, wherein the holding member is adapted to sandwich and hold the tool when the tool is moved downward, and to release the tool when the tool is moved upward, and wherein the holding member is adapted to protrude outward from an opening-closing position of the shutter when set to the delivery position of the tool while a rear end of the tool held by the tool holder in the forward moving direction remains inside the opening-closing position of the shutter.