Abstract: A process is proposed for chip-removing machining of bore surfaces spaced at a distance from one another in axial direction, particularly of crankshaft and/or camshaft bearing bores, in which at least one of the two outermost bore surfaces is machined to produce a bearing surface for the machining of additional bore surfaces, and a boring bar is inserted through one of the machined outermost bores into at least one bore lying between the outermost bore surfaces.

Abstract: A reamer for the fine machining of surfaces of drilled holes in metal workpieces has a reamer body and at that body has at least one main blade and at least one auxiliary blade, a chip surface adjoining the blades at one side and a chip deflector step limiting the chip surface. That deflector step falls away in the zone of the auxiliary blade, exhibiting an increasing distance from the auxiliary blade. The chip deflector step rises in the zone of the main blade, exhibiting a decreasing distance from the main blade. The blades, chip surface and deflector step may be on a cutter plate attached to the reamer body or be part of the body itself. The invention also concerns that cutter plate.

Abstract: A tool for the fine machining of workpieces having at least one cutter tip and at least one setting device acting on the cutter tip. The setting device comprises an adjusting element extending over a region of one side face of the cutter tip. A set screw displaces the adjusting element relative to the cutter tip at least one radially and axially with respect to the body. This moves the cutter tip at least one of radially and axially with respect to the body of the tool. A second adjusting element operably by a second setting device may be provided to act on a second side face of the cutter tip.

Abstract: A tool for machining bore surfaces having at least four cutting edges in respective pairs, one pair of cutting edges are arranged so as to be offset from one another as viewed in the axial direction of the tool, one pair may be diametrically opposed and another pair may be diametrically offset and not diametrically opposed.

Abstract: A tool for machining workpieces, having at least one cutting edge which is fastened to a main body of the tool. A respective deburring device removes the burrs produced by each cutting edge during machining. The deburring device is supported at the main body near the cutting edge and is movable by an actuatable piston between a retracted storage position in the tool body and an extended active position out of the tool body for deburring after surface machining.

Abstract: A tool having a base body is proposed, on which at least one cutter holder, preferably a rocker-type cutter holder, is mounted such that it can be adjusted transversely with respect to the axis of the tool. The cutter holder carries a cutter and rests via a pressure piece on a control chamfer, which is provided on a control sleeve which is mounted in the base body such that it can be displaced axially in relation to the pressure force. The tool is defined in that the movement of the cutter holder (35) is controlled by at least one centrifugal force-actuated element (44, 66).

Abstract: A reamer for the fine machining of surfaces of drilled holes in metal workpieces has a reamer body and at that body has at least one main blade and at least one auxiliary blade, a chip surface adjoining the blades at one side and a chip deflector step limiting the chip surface. That deflector step falls away in the zone of the auxiliary blade, exhibiting an increasing distance from the auxiliary blade. The chip deflector step rises in the zone of the main blade, exhibiting a decreasing distance from the main blade. The blades, chip surface and deflector step may be on a cutter plate attached to the reamer body or be part of the body itself. The invention also concerns that cutter plate.

Abstract: A cutter insert for a tool for the finish machining by chip removal of bore surfaces in workpieces is proposed, the cutter insert being inserted in a recess introduced into the peripheral surface of the tool and being held by means of at least one clamping shoe which interacts by means of a clamping lip with at least one clamping surface of the cutter insert, which is distinguished by the fact that the cutter insert, which preferably has a substantially rectangular configuration, has a hypothetical center line (39) with which the clamping surface (21; 21′) encloses an acute angle (&agr;; &agr;′).

Abstract: A polygon shaped cutting tip for a metal workpiece boring tool, the cutting tip having linear side edges lying in a common plane and adjacent side edges which pass tangentially into rounded corner regions. Parts of the corner regions and of the side edges serve as the primary and secondary cutting edges of the tip. A chip breaker edge is arranged at a distance in from the side edges. A chip breaker surface extends from the side edge to the chip breaker edge. The chip breaker edge includes linear sections corresponding to the linear side edges of the tip and has curved sections which correspond to the curved regions of the side edges. The arc of curvature of both the curved regions and the curved sections is the same although the arcuate length of the curved sections is greater. The chip breaker surface extends from the side edges of the corner regions inward toward and downward into the tip at an acute angle where it intersects the chip breaker edges.

Abstract: A boring tool for the fine finishing of surfaces of holes having at least one cutting bit and at least one guide ledge which are introduced and fixed in place in grooves arranged in the circumferential surface of the base body of the boring tool, characterized by the fact that a setting device is provided which is positively coupled with at least two cutting bits associated with each other; that the cutting bits are arranged displaceable by means of the setting device in the base body with respect to the circumferential surface; that the association of the cutting bits consists in that they are displaceable in opposite directions, with respect to the axis of rotation or center line of the boring tool; and that the setting device in each case displaces one cutting bit into a working position and the other cutting bit into a position of rest.

Abstract: A connecting device or coupling between two coupled tool parts including a first tool part (3) which has a driver (5) and a second tool part (7) which has a groove (9) includes a connecting place or location (1) which is characterized by the fact that it includes a device (15) which compels a well-defined angle-of-rotation position or orientation between the first tool part and the second tool part.

Abstract: A metal cutting including a tool head, a cutting plate, and a snap-locking arrangement for securing the cutting plate to the tool head and formed of a projection, extending from the cutting plate or the bottom of the cavity, which is formed in tool head for receiving the cutting plate, into a hole formed, respectively, in the bottom of the tool head cavity or in the cutting plate, and a snap-action locking element located in the hole for engaging the projection and retaining it in the hole.

Abstract: A tool for precise machining of metal includes two tool parts located one within the other and formed as an inner tool and a tool head respectively, and coupling elements which enable automatic replacement of the tool.

Abstract: A drill including a bit having an extension received in and axially extending groove formed in the end face of the drill base body, a side cutting edge projecting beyond the base body circumference, and two active end cutting edges projecting beyond the end face of the base body, with the drill further including clamping elements for securing the bit extension in the base body groove with a possibility of radial adjustment.

Abstract: A reamer tip having a face and a V-shaped indentation formed in the face and having sides, which form with an imaginary plane extending parallel to the face an angle of about 9.degree.-12.degree., preferably about 10.degree..

Abstract: A reamer tip including a main cutting edge and a auxiliary cutting edge adjoining the first main cutting edge; and a flank provided in a region of the main and auxiliary cutting edges and including a first inclined flank region having a first back angle of about 7.degree., and a second inclined flank region directly adjoining the auxiliary cutting edge, extending from the auxiliary cutting edge to the first flank region, and having a second back angle substantially smaller than the first back angle.

Abstract: A cutting plate for a reamer for fine machining of metal workpieces including a main cutting edge, an auxiliary cutting edge, an apex point at which the auxiliary cutting edge is connected with the main cutting edge, and a chip deflecting surface limited by a chip deflecting step having a high point located opposite a region of the apex point, a first region associated with the main cutting edge and descending, starting from the high point, away from the main cutting edge, and a second region associated with the auxiliary cutting edge and extending relative to the auxiliary cutting edge at an angle of from 0.degree. to about 10.degree..

Abstract: A cutting tool of the specified type is to be miniaturized and configured in such a manner that it is suitable for working bores having a diameter of 6 mm and more and for high-speed work with revolving tools.The solution according to the invention provides that the adjustment screws for radially adjusting the cutting plate simultaneously form a clamping means for the form-locking clamping of the cutting plate to the supporting shoulder of the basic tool body.A preferred field of use are precision drills and grinding tools equipped with inserted cutting strips made of a highly wear resistant cutting material.

Abstract: A reamer includes a cutting tip mounted in the circumferential wall of the base body of the cutting head of the reamer, and at least one guide bead located in a groove formed in the base body and extending in the longitudinal direction of the base body. The guide bead has a contact surface containing at least regionwise a diamond material.