A rotatable tool, comprising a tool support body which has an axis and which forms at least one plate seat either directly or in a cartridge in order to receive a cutting plate. By means of a head screw, which passes through the cutting plate, the base of the cutting plate can be pressed against a base support surface, and two plate edges, which form an angle with each other, can be pressed against a respective corresponding edge support surface of the plate seat. Production dimensions are maintained with a low degree of tolerance and the tool is protected from excessive wear to a sufficient degree. Both edge support surfaces are made of support bodies which are movably guided in the tool support body and which can be driven by a corresponding adjustment device in order to finely adjust the cutting plate in a radial and axial direction, respectively.

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.

The invention relates to a cutting tool having a main body (4) extending along a longitudinal central axis (9) and a cutting insert (1), which is held on the main body (4) in an axially and/or radially positionally-adjustable manner and can be tensioned by means of a clamping claw (3). According to the invention, the cutting insert (1) is held by a clamping holder (2), which is held in a positionally-adjustable manner on the main body (4), and which can be tensioned on the main body (4) by means of the clamping claw (3) pressing against the cutting insert (1).

The drill has a rake face, a flank face, and an outer circumferential surface. The flank face is continuous to the rake face. The outer circumferential surface is continuous to both the rake face and the flank face. A ridgeline between the rake face and the flank face constitutes a cutting edge. A ridgeline between the rake face and the outer circumferential surface constitutes an outer circumferential end. A groove is provided cyclically in the rake face to extend at an angle relative to an axis of the drill, the angle being larger than a helix angle of the drill. The groove has a depth of more than or equal to 1.5 μm.

This disclosure relates to a metal-cutting machine tool with a base body, which is rotatable about an axis of rotation relative to a workpiece to be machined, at least one plate seat disposed outside the axis of rotation on the base body and a cutting insert, which is inserted into the plate seat and held therein by at least one fastening means and which is provided with a coating, at least in the area of its cutting edge. In order to compensate for positional tolerances, according to this disclosure the plate seat comprises a positioning surface oriented toward the axis of rotation, and the cutting insert has a reference surface lying against the positioning surface and facing away from the axis of rotation, for radially determining the position of its cutting edge, wherein the coating is also applied to the reference surface.

This disclosure relates to a metal-cutting machine tool with a base body, which is rotatable about an axis of rotation relative to a workpiece to be machined, at least one plate seat disposed outside the axis of rotation on the base body and a cutting insert, which is inserted into the plate seat and held therein by at least one fastening means and which is provided with a coating, at least in the area of its cutting edge. In order to compensate for positional tolerances, according to this disclosure the plate seat comprises a positioning surface oriented toward the axis of rotation, and the cutting insert has a reference surface lying against the positioning surface and facing away from the axis of rotation, for radially determining the position of its cutting edge, wherein the coating is also applied to the reference surface.

A rotary cutting tool is provided that includes a cutter body, and a plurality of cartridges, fasteners, and cartridge axial adjustment mechanisms. The cutter body has a rotational axis, a circumferential exterior surface, and a plurality of cartridge pockets disposed in the circumferential exterior surface. A cartridge fastener threaded aperture is disposed in each cartridge pocket. The cartridge fastener threaded apertures extend along an axis disposed at an acute angle. Each cartridge has a body having at least one cartridge fastener aperture disposed at the acute angle. Each cartridge axial adjustment mechanism is aligned with a cartridge. Each fastener holds a cartridge against a cartridge pocket, and biases the cartridge against the aligned cartridge axial adjustment mechanism.

A cutter head for a woodworking machine, having a cylindrical, conical, or profiled base body which comprises at least two tool holders for holding a cutting insert. The tool holders each comprise a groove which is open in the radial direction, in which a cutting insert is clamped between a first groove wall of the groove and a one- or two-piece clamping element. The cutter head of can include a support plate arranged between the cutting insert and the first groove wall. The clamping screws are arranged at right angles to the axis and are thus accessible for a cutter change. The screw holder on the clamping element is a ball socket, and the front end of the screw is a round head. The cutter head of has a spring element, which positions the cutting insert during the clamping process, and presses the same via the functional surface radially outward against a stop.

A deburring tool (7) for deburring of edges of transverse recesses (3, 3a-i), which diverge from a main borehole (2), consisting of a shaft (8, 9) driven to turn about the tool axis (11), which is deployable and retractable in the forward feed direction into the main borehole, and on the lower end of which at least one knife window (26) is arranged, in which at least one spring-loaded knife (10, 10′, 10″, 10′″, 10″″) is arranged roughly perpendicular to the tool axis (11), so as to be shiftable, which on its front end has at least one cutting edge (10a, 10b) which encounters the edge of the transverse recess (3, 3a-i), and deburrs same, wherein the knife (10, 10′, 10″, 10′″, 10″″) consists of two cutting edges (10a, 10b) opposite in the rotational direction (12, 13), which act to cut equally for the right and left passes (12, 13), with one cutting edge (10a) being configured to cut for the rightward pass (12), both in forward motion (38a) and in rearward motion, and the other cutting edge (10b), being configured to cut for the leftward pass (13), both in forward motion (38a) and in rearward motion, and that the two cutters (10a, 10b) with their cutting edges are placed at a slant and with arch shape at an angle between 0° and 90°, but preferably between 5° and 45° to the tool axis (11) and thus to the longitudinal axis (2a) of the main borehole (2).

A deburring tool (7) for deburring of edges of transverse recesses (3, 3a-i), which diverge from a main borehole (2), consisting of a shaft (8, 9) driven to turn about the tool axis (11), which is deployable and retractable in the forward feed direction into the main borehole, and on the lower end of which at least one knife window (26) is arranged, in which at least one spring-loaded knife (10, 10′, 10″, 10′″, 10″″) is arranged roughly perpendicular to the tool axis (11), so as to be shiftable, which on its front end has at least one cutting edge (10a, 10b) which encounters the edge of the transverse recess (3, 3a-i), and deburrs same, wherein the knife (10, 10′, 10″, 10′″, 10″″) consists of two cutting edges (10a, 10b) opposite in the rotational direction (12, 13), which act to cut equally for the right and left passes (12, 13), with one cutting edge (10a) being configured to cut for the rightward pass (12), both in forward motion (38a) and in rearward motion, and the other cutting edge (10b), being configured to cut for the leftward pass (13), both in forward motion (38a) and in rearward motion, and that the two cutters (10a, 10b) with their cutting edges are placed at a slant and with arch shape at an angle between 0° and 90°, but preferably between 5° and 45° to the tool axis (11) and thus to the longitudinal axis (2a) of the main borehole (2).