A cutter assembly for increasing a diameter of an initial pair of holes that includes a first hole defined through a first component and a second hole defined through a second component. The cutter assembly includes a pilot member having a pilot diameter corresponding to a tolerance of misalignment of the first hole and the second hole. Further included is a cutter section associated with the pilot member wherein the cutter section has a cutting diameter larger than the pilot diameter and the cutter section is configured to produce a second pair of aligned holes in the first and second components having a diameter dimension of that of the cutting diameter.

A machining tool for deburring boreholes, which lead laterally into a recess, comprising: a shaft; a cutting head with at least one circumferential cutting blade associated with a chip groove and having a cutting edge extending, at least in sections, in an axial direction, and which can perform a cutting process by virtue of relative movement between the tool and a workpiece, and which lies on a virtual cylindrical rotation surface; and at least one cutting-blade-free and chip-groove-free surface area; at least one fluid channel closed on the cutting head side, extending through the shaft into the cutting head; and at least one branch channel with an outlet opening. The outlet opening is in a dynamic pressure active surface radially set back relative to the virtual rotation surface, and is larger than a flow cross-sectional area of the at least one branch channel at the outlet opening.

A cutting tool includes a tubular body made of a composite material, such as carbon reinforced fiber polymer (CFRP). A front support structure comprising a central hub and a plurality of spokes extending radially outward from the central hub is attached proximate the front end of the tubular body. A rear support structure comprising a central hub and a plurality of spokes extending radially outward from the central hub is attached proximate the rear end of the tubular body. Cartridge supports are attached directly to one of the front and rear support structures. A rear machine connection member is attached to the rear support structure for providing coolant to the front and rear support structures. The CFRP tubular body increases the stiffness to weight ratio of the cutting tool.

A cutting insert for a tool for machining a workpiece. The cutting insert comprises a clamping section which comprises a coolant channel which is configured as a through-hole. Further, the cutting insert comprises a cutting head having at least one cutting member which comprises a main cutting edge, a rake face which adjoins the main cutting edge, and a chip-breaking geometry which protrudes from the rake face or which is introduced into the rake face and which is configured to break a chip which is machined with the main cutting edge. Furthermore, the cutting insert comprises a cantilever arm which connects the clamping section to the cutting head and which has a smaller diameter than the clamping section. A portion of the cutting head comprising the chip-breaking geometry at least partially covers the coolant channel when viewed in a plan view from a front side along a longitudinal axis of the cutting insert.

A chip-removing tool for deburring bores, which laterally open into a cylindrical recess for example, comprising a shaft; a cutting head with at least one cutting wedge on the circumference, said cutting wedge being paired with a flute and having a cutter, which extends in an axial direction at least in some sections, carries out a cutting process on the basis of a relative movement between the tool and a workpiece, and lies on a virtual cylindrical rotational surface with a diameter that corresponds to the nominal diameter of the chip-removing tool, and at least one cutting wedge- and flute-free surface region; at least one fluid channel closed on the cutting head side and extending through the shaft and into the cutting head; and at least one puncture channel which starts from the fluid channel and comprises an opening that lies in the cutting wedge- and flute-free surface region.

A machining tool has a body that includes a central tubular portion forming a duct centered on a longitudinal axis. A peripheral tubular portion is coaxial with the central tubular portion and surrounds the central tubular portion. A first machining stage has a first arm and a second arm that extend on either side of the central tubular portion. The first arm and the second arm each have a machining member at the end thereof. The first arm and the second arm are each integral with the central tubular portion and the peripheral tubular portion. The machining tool body also includes a baseplate. The peripheral tubular portion has at least one linking arch connecting the first arm and the second arm and bypassing the central tubular portion.

A drilling tool, in particular a reamer, for drilling out a workpiece core bore to a nominal diameter by means of a main blade formed on a drill body is disclosed. The main blade has a radially external cutting edge which extends along a drill-body longitudinal axis as far as a blade corner arranged at the drill tip, wherein during the drilling-out operation, the drilling tool is drivable into the workpiece core bore with a rotary movement and a feed movement. The drilling tool has at least one groove blade which is arranged so as to precede the blade corner of the main blade in the direction of rotation of the tool. During the drilling-out operation, the groove blade produces a groove in the inner wall of the core bore drilling, the blade corner of the main blade being guided in the groove with an at least reduced cutting load.

A boring tool includes a clamping shaft and a boring body. Between the end face of the boring body and the clamping shaft, at least one main blade extends along a longitudinal axis of the boring body and includes a blade web with a rake face facing a groove-shaped chip space, and a free surface on the outer circumferential side, these converging at a cutting edge which runs along the boring body longitudinal axis and which removes material on an inner wall of a pre-bored workpiece core bore hole as a result of said boring tool being rotated. The main blade extending along the longitudinal axis of the boring body transitions at the end face, of the boring body into a groove blade that is aligned transversely to the longitudinal axis of the boring body. This groove blade allows the boring tool to be displaced, prior to removing the material by rotation, into the core bore hole in an axial lifting motion such that a groove is formed which extends along the longitudinal axis of the core bore hole, the main blade of the boring tool engaging in this groove.