A modular boring head includes a tubular main body having an internal thread with a first pitch and a pair of axially extending cantilevered members. A movable rod engages the tubular main body such that the movable rod is movable with respect to the tubular main body in an axial direction, D. The movable rod has an internal thread with a second pitch different than the first pitch. A leadscrew is disposed within the tubular main body and has a plurality of gear teeth. Rotation of the leadscrew causes the pair of axially extending cantilevered members of the tubular main body to cooperatively engage with the plurality of gear teeth of the leadscrew in such a manner so as to produce an audible and tactile click, each click being indicative of a distance the movable rod is displaced with respect to the tubular main body.

A boring-bar arrangement includes a boring bar, a securing device, and a clamping bolt. The securing device has a reduction sleeve, which is secured in a tool chuck, which has a front end that faces away from the tool chuck and a protruding hollow section which receives the boring bar. The hollow section has a hollow-section interior, a hollow-section outer wall, and a hollow-section wall which is arranged therebetween. The hollow-section wall has a first thickness in a side region where the cutting tool protrudes from the boring bar which is less than a second thickness in a rest of the hollow-section wall. The boring bar is releasably secured as a replaceable head, via its back end, at a front end of the protruding hollow section. A front end of the clamping bolt has a male thread which sits in the female thread of the boring bar.

A boring-bar arrangement includes a boring bar, a securing device, and a clamping bolt. The securing device has a reduction sleeve, which is secured in a tool chuck, which has a front end that faces away from the tool chuck and a protruding hollow section which receives the boring bar. The hollow section has a hollow-section interior, a hollow-section outer wall, and a hollow-section wall which is arranged therebetween. The hollow-section wall has a first thickness in a side region where the cutting tool protrudes from the boring bar which is less than a second thickness in a rest of the hollow-section wall. The boring bar is releasably secured as a replaceable head, via its back end, at a front end of the protruding hollow section. A front end of the clamping bolt has a male thread which sits in the female thread of the boring bar.

The invention relates to a tool (1) for machining a workpiece (3), said tool having a longitudinal axis (L), wherein the tool (1) comprises a first machining region (5) and a second machining region (7), wherein the first machining region (5) is spaced apart from the second machining region (7) along the longitudinal axis (L), and wherein a chip protection barrier (9) is located between the first machining region (5) and the second machining region (7), said chip protection barrier being designed to prevent chips removed from a workpiece (3) from passing from one machining region (5, 7) selected from the first machining region (5) and the second machining region (7) into the other machining region (7, 5) selected from the second machining region (7) and the first machining region (5).

The invention relates to a tool (1) for machining a workpiece (3), said tool having a longitudinal axis (L), wherein the tool (1) comprises a first machining region (5) and a second machining region (7), wherein the first machining region (5) is spaced apart from the second machining region (7) along the longitudinal axis (L), and wherein a chip protection barrier (9) is located between the first machining region (5) and the second machining region (7), said chip protection barrier being designed to prevent chips removed from a workpiece (3) from passing from one machining region (5, 7) selected from the first machining region (5) and the second machining region (7) into the other machining region (7, 5) selected from the second machining region (7) and the first machining region (5).

A boring bar head body is disclosed. An example boring bar head includes a front face, an attachment face opposed to the front face, and an axis substantially perpendicular to the front face and attachment face. The attachment face is operably connected to a boring bar. The front face includes a low plane, a high plane, and an insert groove in between at least a portion of the high and low planes. In the insert groove there is at least one cutting insert that has a cutting surface and a bottom surface. The cutting insert is removably attached to the insert groove.

A hole machining tool includes an outwardly facing pad pocket and a guide pad secured therein. The pad pocket includes a pocket base surface and a wedge member which includes opposite wedge top and bottom surfaces which forming an acute wedge angle therebetween. The wedge bottom surface abuts the pocket base surface and the guide pad abuts the wedge top surface. The machining tool further includes an adjustment screw which abuts the wedge member and configured to move the wedge member along the pocket base surface. The machining tool further includes a clamping member which passes through a wedge opening in the wedge member and configured to secure the guide pad and the wedge member in the pad pocket.

A hole machining tool includes an outwardly facing pad pocket and a guide pad secured therein. The pad pocket includes a pocket base surface and a wedge member which includes opposite wedge top and bottom surfaces which forming an acute wedge angle therebetween. The wedge bottom surface abuts the pocket base surface and the guide pad abuts the wedge top surface. The machining tool further includes an adjustment screw which abuts the wedge member and configured to move the wedge member along the pocket base surface. The machining tool further includes a clamping member which passes through a wedge opening in the wedge member and configured to secure the guide pad and the wedge member in the pad pocket.

A drilling tool with: a shaft; a seat at one end of the shaft; a drill bit, which is arranged on the seat; and a clamping section, which is provided on the shaft and can interact with the drill bit. Also provided is a tensioning screw, which is screwed into the shaft and comprises an expanding section as well as a contact section. The expanding section interacts with the clamping section, and the contact section interacts with the drill bit.

A drilling tool with: a shaft; a seat at one end of the shaft; a drill bit, which is arranged on the seat; and a clamping section, which is provided on the shaft and can interact with the drill bit. Also provided is a tensioning screw, which is screwed into the shaft and comprises an expanding section as well as a contact section. The expanding section interacts with the clamping section, and the contact section interacts with the drill bit.