A tap holder having a simple structure and high runout accuracy is provided. A tap holder includes: a body having a collet holder hole having an opening toward distal end; a tap collet received in the collet holder hole, the tap collet having a tap mounting hole located at a distal end portion, and a sleeve hole located at a basal end portion; a torque transmission mechanism that transmits rotation of the body to the tap collet; a first elastic body disposed between the body and the tap collet to urge the tap collet toward distal end; a sleeve disposed to the body by received in the sleeve hole to prevent the tap collet from slipping off toward distal end; and a second elastic body disposed between the sleeve and the tap collet to urge the tap collet toward basal end.

A tool holder (1) includes a clamping member (4) for clamping and holding a tool (5), a holder body (2) having, at a leading end thereof, a receiving portion (25) for receiving the clamping member (4) along an axis (AX) and an operational member (N) for attaching the clamping member (4) to the holder body (2). The clamping member (4) clamps the tool (5) by an operation of the operational member (N). Vibration is applied to a contact portion (T) between the clamping member (4) and the holder body (2) when the clamping member (4) clamps the tool (5).

A deburring tool includes a body including a cylinder chamber having a tool holder holding hole, and an anti-rotation body holding hole; a tool holder having an anti-rotation groove and disposed in the cylinder chamber to reciprocate in the cylinder chamber; a first elastic body disposed inside the cylinder chamber to urge the tool holder toward a distal end; a cover disposed outside the body to reciprocate between a detaching position and a processing position, the cover including, a pressing surface that covers the anti-rotation body holding hole at the processing position, and a relief portion; and an anti-rotation body accommodated in the relief portion when the cover is positioned at the detaching position and the tool holder is pulled from the tool holder holding hole.

Disclosed is a deburring tool holder that may be used in combination with a computer controlled machine with a rotating spindle allowing for the provision of biasing forces on the deburring tool in both compression and tension, including a preset or predetermined amount of biasing force independent for compression versus tension.

Disclosed is an integrated tapping and drill attachment which includes a predetermined tapping configuration or mode which provides the desired flexibility for tapping, and also a predetermined drilling configuration or mode which provides the desired concentric and axial guidance as well as the desired rigidity for drilling operations.

Disclosed is a deburring tool holder that may be used in combination with a computer controlled machine with a rotating spindle allowing for the provision of biasing forces on the deburring tool in both compression and tension, including a preset or predetermined amount of biasing force independent for compression versus tension.

An inline tool holder including a shaft collar, a mounting plate, a first enclosure, and a second enclosure. The mounting plate is concentrically arranged around the shaft collar and includes a first surface, a second surface, and an attachment mechanism. The first enclosure is removably coupled to the first surface of the mounting plate and the second enclosure is removably coupled to the second surface of the mounting plate. The attachment mechanism of the mounting plate extends radially beyond an outer edge of both the first enclosure and the second enclosure.

Provided is a processing tool capable of sliding a tool relative to a shank with a simple structure, to which a tool holder is detachably attached. The processing tool to which the tool is detachably attached, includes: a body; a spindle including tool holder holding hole, a first anti-rotation body holding hole; a cover including a pressing surface and a relief portion; a tool holder detachably inserted into the tool holder holding hole, the tool holder including a first anti-rotation groove, a tool holding hole, and a first spring holding hole, an anti-rotation body movable between the first anti-rotation groove and the pressing surface, the anti-rotation body accommodated in the relief portion when the cover is located at the detachable position and the tool holder is removed from the tool holder holding hole; and an elastic member to urge the tool holder toward distal end.

A deburring method includes rotating a case, a sleeve and a drive gear together with a spindle of a machining tool; transmitting rotating torque from the drive gear to a driven gear to rotate a tip tool together with a reciprocating shaft; receiving reactive torque to the tip tool in a reverse direction of a rotational direction of the case by a workpiece contact with the tip tool so that the reciprocating shaft rotates in a reverse direction of the rotational direction with respect to the sleeve; moving the reciprocating shaft to a basal end direction against an elastic force of a second spring with the driven gear sliding with respect to the drive gear; and cutting the workpiece by the tip tool.

A deburring tool includes: a case; a hollow sleeve that reciprocates inside the cylinder in a non-rotating manner; a drive gear disposed inside the sleeve, includes a first tooth, and rotates together with the case and the sleeve; a reciprocating shaft disposed inside the sleeve, including a driven gear disposed at a basal end portion of the sleeve and a basal end side of the drive gear, the driven gear including a second tooth, a tool holder disposed at a distal end portion of the sleeve, and slides inside the sleeve in a rotational and reciprocating direction, and a stem that fixes the driven gear and the tool holder, and penetrates the drive gear, a first spring that urges the sleeve toward distal end direction; and a second spring that urges the tool holder from the drive gear toward distal end direction.