An internal milling cutter includes a carrier disk having a centre axis defining an axis of rotation of the milling cutter, a plurality of separated tool holder segments removably mounted at the inner circumference of the carrier disk, and at least one clamp for each tool holder segment mounted either on the carrier disk or on the tool holder segment. Each of the tool holder segments at its inner circumference includes at least one cutting insert seat with a mounting element for a cutting insert or at least one cutting edge. The clamp is located and arranged such that it generates a force in the axial direction pressing the axial contact surface of the tool holder segment onto the axial abutment surface of the carrier disk, and the clamp is mounted movably in a radial direction of the carrier disk between a locking position and a releasing position.

A rotary cutting tool includes a disc-like central body having an outer peripheral surface. A peripheral support member extends circumferentially along the peripheral outer surface of the disc-like central body and provides support against centrifugal and cutting forces exerted on an insert pocket during a cutting operation. A radial support member extends radially along the disc-like central body to the peripheral support member. The radial support member structurally interacts with the peripheral support member to provide additional support for the insert pocket against centrifugal and cutting forces exerted on the insert pocket during a cutting operation. The radial support member and the peripheral support member have a three-dimensional topology that maximizes a stiffness-to-weight ratio of the rotary cutting tool. The rotary cutting tool may include a second radial support member extending radially along the disc-like central body to the peripheral support member.

A rotary cutting tool includes a disc-like central body having an outer peripheral surface. A peripheral support member extends circumferentially along the peripheral outer surface of the disc-like central body and provides support against centrifugal and cutting forces exerted on an insert pocket during a cutting operation. A radial support member extends radially along the disc-like central body to the peripheral support member. The radial support member structurally interacts with the peripheral support member to provide additional support for the insert pocket against centrifugal and cutting forces exerted on the insert pocket during a cutting operation. The radial support member and the peripheral support member have a three-dimensional topology that maximizes a stiffness-to-weight ratio of the rotary cutting tool. The rotary cutting tool may include a second radial support member extending radially along the disc-like central body to the peripheral support member.

Milling tool head assemblies, remote control systems, and portable machine tools including the same. A milling tool head assembly comprises a milling tool head carriage, a milling tool head with a milling tool head base pivotally coupled to the milling tool head carriage, and a milling tool carrier operatively coupled to a cutting tool. The milling tool carrier is configured to travel along a primary tool path, and the milling tool carrier is slidingly coupled to the milling tool head base to define a secondary tool path of the milling tool carrier. In some examples, a portable machine tool comprises a machine frame, a rotating ring, a bridge, a facing tool head assembly, and a milling tool head assembly. In some examples, a remote control system for a portable machine tool comprises an operator pendant, a control tether, a pneumatic conditioning unit, and an auxiliary conditioning unit.

Milling tool head assemblies, remote control systems, and portable machine tools including the same. A milling tool head assembly comprises a milling tool head carriage, a milling tool head with a milling tool head base pivotally coupled to the milling tool head carriage, and a milling tool carrier operatively coupled to a cutting tool. The milling tool carrier is configured to travel along a primary tool path, and the milling tool carrier is slidingly coupled to the milling tool head base to define a secondary tool path of the milling tool carrier. In some examples, a portable machine tool comprises a machine frame, a rotating ring, a bridge, a facing tool head assembly, and a milling tool head assembly. In some examples, a remote control system for a portable machine tool comprises an operator pendant, a control tether, a pneumatic conditioning unit, and an auxiliary conditioning unit.

A double-ended parting cutting insert. The cutting insert includes two cutting portions at opposite ends thereof which are oriented at 90° to each other. The cutting insert includes a pair of rake and support engagement grooves, the rake and support engagement grooves of each one of the pair converging in a direction away from a respective cutting portion. An insert holder includes a clamping portion having a resilient upper clamping jaw having an upper engagement ridge and a lower base jaw having a lower engagement ridge. A gap therebetween forms an insert receiving slot that has a slot opening. The upper and lower engagement ridges converge in a direction away from the slot opening. When the cutting insert is releasably attached to the insert holder, to constitute a fastened position of a cutting tool, the cutting insert is located in the insert receiving slot and resiliently clamped therein.

A cutting tool, such as a saw blade, has a carrier forming at least one cylindrical receptacle and at least one abutment jaw for a cutting insert. The cutting insert includes a cylindrical main cutting body and a cutting edge protruding radially therefrom, which on the back of the cutting edge has at least one abutment for the abutment jaw. The cutting insert can be inserted into the receptacle transversely to the cutting direction and, in the inserted position, can be rotated between an inserted position and a cutting position. The cutting insert is secured in the cutting position using an anti-rotation lock and is inserted into the cylindrical receptacle in the manner of a bayonet connection. Despite simple production and mounting conditions, the cutting tool ensures adequate stability and strength of interchangeable cutting inserts on the carrier such that thin-cut applications, such as carrier thicknesses of under 6 mm.

A cutting tool, such as a saw blade, has a carrier forming at least one cylindrical receptacle and at least one abutment jaw for a cutting insert. The cutting insert includes a cylindrical main cutting body and a cutting edge protruding radially therefrom, which on the back of the cutting edge has at least one abutment for the abutment jaw. The cutting insert can be inserted into the receptacle transversely to the cutting direction and, in the inserted position, can be rotated between an inserted position and a cutting position. The cutting insert is secured in the cutting position using an anti-rotation lock and is inserted into the cylindrical receptacle in the manner of a bayonet connection. Despite simple production and mounting conditions, the cutting tool ensures adequate stability and strength of interchangeable cutting inserts on the carrier such that thin-cut applications, such as carrier thicknesses of under 6 mm.

A milling cutter includes a front end part and a back end part. The front end part includes a disc-shaped cutter body having a front side, a rear side, a central axis, and a number of insert seats. A primary holding member extends from the rear side. The back end part includes a secondary holding member, which engages the primary holding member when the front and back end parts are mounted to each other. The disc-shaped cutter body has a central cylindrical aperture extending coaxially with the central axis and including an inner cylindrical surface. An outer cylindrical surface is provided on a front portion of the secondary holding member. The inner cylindrical surface abuts the outer cylindrical surface in an abutting region between the front and the rear sides to center the front and back end parts.

A milling cutter includes a front end part and a back end part. The front end part includes a disc-shaped cutter body having a front side, a rear side, a central axis, and a number of insert seats. A primary holding member extends from the rear side. The back end part includes a secondary holding member, which engages the primary holding member when the front and back end parts are mounted to each other. The disc-shaped cutter body has a central cylindrical aperture extending coaxially with the central axis and including an inner cylindrical surface. An outer cylindrical surface is provided on a front portion of the secondary holding member. The inner cylindrical surface abuts the outer cylindrical surface in an abutting region between the front and the rear sides to center the front and back end parts.