Abstract: A cutting insert rotatable about an axis, has opposing front and rear surfaces interconnected by an insert peripheral surface, the insert peripheral surface having first and second side surfaces spaced apart by first and second land surfaces. First and second land edges extend along the first and second land surfaces, respectively. A first front edge formed at the intersection of the front surface and the first side surface includes a cutting-edge portion, and a second front edge formed at the intersection of the front surface and the second side surface is devoid of a cutting-edge portion. A cutting profile formed by rotating the cutting-edge portion about the axis is located axially forward of the second front edge. The cutting insert is releasably secured to a tool shank, the cutting insert being located between two protuberances protruding from a forward end portion of the tool shank.

Abstract: In a cutting tool having an indexable lay-down cutting insert with a central body portion and three circumferentially spaced apart cutting portions, the cutting insert is removably secured to an elongated holding portion of an insert holder. Each cutting portion has a cutting edge with first and second cutting end points, the cutting edge formed at the intersection of an upward facing rake surface and a radially outward facing relief surface. In a top view of the cutting insert, parallel imaginary first and second vertical planes containing the first and second cutting end points, intersect the central body portion at first and second body side points, which are located first and second cutting distances from the first and second cutting end points, respectively. Each of the first and second cutting distances is greater than twenty-five percent of the first radius of an imaginary first circle circumscribing the cutting insert.

Abstract: An indexable cutting insert has a central mounting portion and two cutting portions. The central mounting portion has opposing upper and lower surfaces. The lower surface has two abutment elements associated therewith, each abutment element having two diverging abutment surfaces forming two abutment angles. The two cutting portions extend away from the central mounting portion, have distal cutting edges, and are entirely located in diagonally opposite imaginary quadrants of four quadrants defined by two mutually perpendicular quadrant planes. Two abutment bisector planes bisecting the two abutment angles and one of the quadrant planes are parallel or coincident. In a top view, the two cutting portions extend away from the central mounting portion in opposite directions. Two cutting bisector lines parallel to the two directions and bisecting the two cutting edges are mutually offset. A cutting tool has an insert holder and the cutting insert removably retained therein.

Abstract: A tool holder includes a tool shank and a tool head connected to the tool shank. The tool head has a rear surface. An insert seat or a blade pocket is partially formed on both the tool head and the tool shank, and extends rearwardly of the tool head's rear surface. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.

Abstract: A cutting tool includes a cutting member having a shank portion located in a clamping recess of a clamping sleeve adaptor of a holding device. The shank portion has a peripheral shank surface including a switching arrangement including two circumferentially spaced apart circumferential outer portions and a circumferential inner portion extending therebetween. The circumferential inner portion has opposite electrical conductivity to the two circumferential outer portions. The holding device has an alignment indicating unit including an electric switch including two spaced apart conductive switch members configured to be in electrically conductive communication or non-communication with each other thereby closing or opening the electric switch, so that an electric circuit established or broken, forming first and second states of the cutting tool, respectively. Switching between the first and second states is realized by rotation of the cutting member with respect to the clamping sleeve adaptor.

Abstract: A cutting insert includes an insert peripheral surface that includes at least one planar major insert side abutment surface and an insert lower surface that includes an anti-slip recess recessed therein. The anti-slip recess includes at least one elongated and straight anti-slip groove. Each major insert side abutment surface is oriented parallel to a groove longitudinal axis of a respective anti-slip groove. An insert holder includes a holder pocket. The holder pocket includes a pocket peripheral surface which includes planar major pocket side abutment surface and a pocket base surface having an elongated and straight anti-slip rib. When the cutting insert is releasably attached to the insert holder, to constitute a fastened position of a cutting tool, the anti-slip rib is located in the anti-slip groove that is oriented parallel to the major insert side abutment surface that abuts the major pocket side abutment surface.

Abstract: A cutting head rotatable about a head axis has a cap portion and a mounting protuberance joined thereto. The cap portion has N cutting portions circumferentially alternating with N head flutes. The mounting protuberance has N circumferentially spaced apart engagement portions, each including a radially outward facing clamping surface and a torque transmission surface. In a cross-section taken in a head plane perpendicular to the head axis, a first imaginary circle having a first diameter circumscribes the N clamping surfaces, and N radially outermost torque points of the N torque transmission surfaces define a second imaginary circle having a second diameter. The second diameter is greater than ninety percent of the first diameter. A rotary cutting tool includes a tool shank extending along a shank axis and a head receiving pocket at a forward end thereof, and the cutting head is releasably secured in the head receiving pocket.

Abstract: A rotary cutting tool includes a replaceable cutting head and a tool holder. The replaceable cutting head includes a forward cutting portion and a rearward mounting portion. The mounting portion includes a male coupling member that includes an external thread defined by external inner and outer cylinders. The external thread has concavely curved external thread roots which each merge with a respective straight external loaded surface at a first external root point. The first external root point is spaced apart from the external inner cylinder by a first external radial distance. The first external radial distance is greater than a third and less than two thirds of the external thread height. The tool holder includes a female coupling member that includes an internal thread. When the rotary cutting tool is in a locked position, the external thread is threadingly engaged with the internal thread.

Abstract: A rotary milling tool has a tool holder and a milling head releasably attached thereto. The milling head has a plurality of angularly spaced apart peripherally disposed cutting edges which form an effective cutting edge. The milling head has a head through recess opening out to the head forward and rearward surfaces. The recess includes a centering region and a driven region, the driven region being axially forward of, and non-identical to, the centering region. The driven region has at least one driven surface facing opposite a rotational direction. The centering region has at least one radially inwardly facing radial centering surface located axially rearward of, and radially outward from, the at least one driven surface. The two opposing extremities of the effective cutting edge define two parallel planes respectively between which both the at least one driven surface and the at least one radial centering surface are disposed.

Abstract: A tool holder including a tool shank and a tool head connected to the tool shank. The tool head comprising an insert seat or a blade pocket. Adjacent to at least a portion of a shank side surface there is a reinforcement portion connecting the shank side surface and the tool head.

Abstract: A milling tool having a radial cutting edge for milling high-feed rates. The radial cutting edge having first, second and third sub-edges which extend at angles which are relatively small when formed with a longitudinal axis AL of the milling tool, thereby allowing the high-feed rates.

Abstract: A tool coupling extends along a longitudinal axis and has a first component, a second component, and a clamp for fastening the first component to the second component. The first component has a male clamping portion, the second component has a female clamping portion, and the clamp is located in an inner cavity of the second component. The male clamping portion has a first abutment region located axially rearward of a first plane perpendicular to the longitudinal axis, the inner cavity has a second abutment region located axially forward of the first plane, and the first and second abutment regions face towards the first plane. In a fastened state, a clamp first engagement region of the clamp makes clamping contact with the male clamping portion's first abutment region, and a clamp second engagement region of the clamp makes clamping contact with the inner cavity's second abutment region.

Abstract: A cutting tool includes a cutting insert resiliently clamped in an insert holder. The insert holder includes a forwardly located insert mounting portion that includes an insert receiving recess which extends along a recess axis. The insert holder includes a fastening member through hole opening out to the insert receiving recess. The insert receiving recess includes an insert orientation projection. The fastening member through hole has a through hole angular extent about the recess axis. The insert orientation projection has an insert orientation projection angular extent about the recess axis. The insert orientation projection angular extent at least partially angularly overlaps the through hole angular extent about the recess axis.

Abstract: A curved face grooving blade having a curved grooving portion and a clamping portion connected thereto. The grooving portion having an insert seat defining upward and downward directions. The clamping portion has a bottom wedge surface located in an inward and downward direction relative to the remainder of the clamping portion.

Abstract: A single-sided three-way indexable milling insert for feed milling operations, includes a positive basic shape, a rake surface, a peripheral surface including side abutment surfaces, a base bearing surface and a screw hole connecting the rake and base bearing surfaces. The insert has a cutting edge including exactly three main cutting sub-edges and three secondary cutting sub-edges. A material volume VF of the cutting insert and a void volume VS of the insert fulfill the condition VS/VF?0.30.

Abstract: A rotary cutting tool includes a replaceable cutting head and a tool holder. The replaceable cutting head includes a forward cutting portion and a rearward mounting portion. The mounting portion includes a male coupling member that includes an external thread defined by external inner and outer cylinders. The external thread has concavely curved external thread roots which each merge with a respective straight external loaded surface at a first external root point. The first external root point is spaced apart from the external inner cylinder by a first external radial distance. The first external radial distance is greater than a third and less than two thirds of the external thread height. The tool holder includes a female coupling member that includes an internal thread. When the rotary cutting tool is in a locked position, the external thread is threadingly engaged with the internal thread.

Abstract: An undersized indexable cutting insert being devoid of a through bore and has exactly three main cutting edges. The cutting insert has an inscribed circle which tangentially contacts only and all main cutting edges, and has an inscribed circle diameter of under 3.8 millimeters.

Abstract: A two-directional high-feed turning tool assembly includes a tool holder, a cutting insert and a clamping element securing the cutting insert to the tool holder. The cutting insert includes an active cutting edge having a centrally located forwardmost edge portion and first and second main edge portions extending rearwardly from the forwardmost edge portion, as well as sideways to an extent further than flank tool sides of the tool holder. The first and second main edge portions also can each have a relatively small immersion angle facilitating high-feed turning in two sideways directions.

Abstract: A method of clamping a first cutting insert or an adaptor to a holder. Either the holder includes two insert pockets configured for machining in two different orthogonal directions or the holder includes a single adaptor pocket configured for holding the adaptor in two different orthogonal directions. The method includes the steps of choosing one of two orthogonal directions for machining and securing either the first cutting insert to an appropriate one of the two pockets or securing the adaptor to the adaptor pocket for machining in the chosen orthogonal direction.

Abstract: A cutting head rotatable about a head axis has a cap portion and a mounting protuberance joined thereto. The cap portion has N cutting portions circumferentially alternating with N head flutes. The mounting protuberance has N circumferentially spaced apart engagement portions, each including a radially outward facing clamping surface and a torque transmission surface. In a cross-section taken in a head plane perpendicular to the head axis, a first imaginary circle having a first diameter circumscribes the N clamping surfaces, and N radially outermost torque points of the N torque transmission surfaces define a second imaginary circle having a second diameter. The second diameter is greater than ninety percent of the first diameter. A rotary cutting tool includes a tool shank extending along a shank axis and a head receiving pocket at a forward end thereof, and the cutting head is releasably secured in the head receiving pocket.