Abstract: A reaming tool includes a main tool body disposed about a rotational axis, a plurality of peripherally arranged cutting inserts coupled to the tool body, and a fine adjustment mechanism associated with each cutting insert. The adjustment mechanism includes an adjusting screw with a conical section that acts on the cutting insert for fine adjustment, the conical section being arranged between a first and a second cylindrical guide section. The two guide sections ensure high-precision guidance of the adjusting screw.

Abstract: In one aspect, cutting tools are described herein employing PCD substrates having coatings applied thereto. A cutting tool, for example, comprises one or more cutting edges including a PCD substrate and a diamond-like carbon coating adhered to the PCD substrate, the diamond-like carbon coating having hardness greater than 4000 HV0.05. In some embodiments, the diamond-like carbon coating has a thickness greater than 0.3 ?m and a sp3 fraction of at least 0.85.

Abstract: Rotary tool, such as a drill or milling cutter, having a main tool body, which extends along a center longitudinal axis, which has a flute and which, at a distance from the center longitudinal axis, has an insert seat which is introduced into the flute wall and in which a cutting insert, in particular made of a superhard material such as PCD or PCBN, is fastened integrally, wherein, for fixing both a radial and also an axial position of the cutting insert, the insert seat has an abutment wall which has a contour for positioning the cutting insert in a rotationally locked manner.

Abstract: A multi-flute reamer includes a cutting portion having a forward end and a rearward end, and a chip flute with a chip gash opening, and a cutting insert mounted on the cutting portion. A leading edge is formed at an intersection between a top surface and a radially-outward side surface, and a front edge is formed at an intersection between the top surface and a forward side surface. The cutting insert includes a rounded lead cutting edge formed at the intersection between the leading edge and the front edge, and the top surface includes a chip breaker having a bottom surface formed with a radius, R.

Abstract: A reaming tool includes a main tool body disposed about a rotational axis, a plurality of peripherally arranged cutting inserts coupled to the tool body, and a fine adjustment mechanism associated with each cutting insert. The adjustment mechanism includes an adjusting screw with a conical section that acts on the cutting insert for fine adjustment, the conical section being arranged between a first and a second cylindrical guide section. The two guide sections ensure high-precision guidance of the adjusting screw.

Abstract: In order to ensure highly precise setting, in particular readjustment of the radial position of the blade in the case of a rotary tool, in particular a reamer, an adjustment element, in particular in the form of an adjustment screw, having a cone formed by the screw head is inserted into an end-side receptacle in a cutting section, said cone being provided with a friction-reducing coating.

Abstract: A tool interface that is easy to produce but also precise, for coupling a tool head to a tool shank in a centered manner in respect of a shank axis, comprises a first interface part that is connected to the tool shank or to the tool head, and a second interface part that is connected to the respectively other tool part, namely, to the tool head or to the tool shank. The two interface parts have interface surfaces that substantially complement each other and are intended to bear flatly on each other. The interface surface of the first interface part comprises an inner cone surface and an outer cone surface, which surrounds the latter on the outside and coaxially. The interface surface of the second interface part comprises an outer cone surface, which corresponds with the inner cone surface of the first interface part, and an inner cone surface, which corresponds with the outer cone surface of the first interface part.

Abstract: The invention relates to a cassette for a milling cutter having a cutter carrier and a clamping part, which together constitute a generally rectangular cassette, the cutter carrier and the clamping part being loosely placed on each other and together delimiting a fastening opening for a fastening screw by means of which the cassette can be fastened in a receiver of a milling cutter, the cutter carrier having a seat for a cutting insert. The invention additionally relates to a milling cutter having at least one receiver for a cassette and having at least one such cassette. A gap, S, between the cutter carrier and the clamping part is located below the cutting tip of the cutting insert to prevent chips from being lodged in the gap, S.

Abstract: The invention relates to a cassette for a milling cutter, having a cutter carrier and a clamping part, which together constitute a generally rectangular cassette, the cutter carrier and the clamping part being loosely placed on each other and together delimiting a fastening opening for a fastening screw by means of which the cassette can be fastened in a receiver of a milling cutter, the cutter carrier having a seat for a cutting insert. The invention additionally relates to a milling cutter having at least one receiver for a cassette and having at least one such cassette.

Abstract: A cutting tool for performing hole-cutting operations on a workpiece when the cutting tool is rotated about a central longitudinal axis. The cutting tool includes a generally cylindrical body having a first end structured to engage the workpiece and an opposite second end structured to be mounted to a machine tool; a groove formed in the first end of the generally cylindrical body, the groove disposed generally transverse to the longitudinal axis; and a nib portion disposed in, and coupled to, the groove via a brazing process.

Abstract: A multi-flute reamer includes a cutting portion having a forward end and a rearward end, and a chip flute with a chip gash opening, and a cutting insert mounted on the cutting portion. A leading edge is formed at an intersection between a top surface and a radially-outward side surface, and a front edge is formed at an intersection between the top surface and a forward side surface. The cutting insert includes a rounded lead cutting edge formed at the intersection between the leading edge and the front edge, and the top surface includes a chip breaker having a bottom surface formed with a radius, R.

Abstract: A tool interface (5) that is easy to produce but also precise for coupling a tool head (2) to a tool shank (3) in a centered manner in respect of a shank axis (4), comprises a first interface part (6) that is connected to the tool shank (3) or to the tool head (2), and a second interface part (7) that is connected to the respectively other tool part, namely, to the tool head (2) or to the tool shank (3). The two interface parts (6, 7) have interface surfaces (9, 10) that substantially complement each other and are intended to bear flatly on each other. The interface surface (9) of the first interface part (6) comprises an inner cone surface (21) and an outer cone surface (22), which surrounds the latter on the outside and coaxially.