Provided is a milling/cutting tool including: a tool main unit that is rotated about an axis; and a plurality of tips that are disposed at one end surface of the tool main unit with spacings therebetween in a circumferential direction about the axis of the tool main unit, wherein the individual tips are disposed so that turning rake surfaces thereof are inclined in the axial directions.

A milling tool for face milling a substantially flat workpiece surface includes at least one main cutting element rotatable in a rotation direction about a tool axis oriented at a right angle to the workpiece surface and movable transversely to the tool axis and along the workpiece surface. The main cutting element includes a face cutter having a radially outer cutting edge corner and adapted to remove material from the workpiece surface up to maximal a nominal size. At least one clearance groove cutting element is provided and leads the main cutting element in the rotation direction to produce in the workpiece surface a clearance groove, in which the radially outer cutting edge corner of the main cutting element is guided substantially without being subjected to cutting stress.

A cutting tool includes a tool body having a peripherally disposed outer insert receiving pocket and an interiorly disposed inner insert receiving pocket with a cutting insert resiliently clamped therein. The tool body includes a through recess at least partially circumferentially bounded by a recess circumferential surface. A resilient clamping member extends into the through recess. The inner insert receiving pocket is formed by the resilient clamping member and a recess pocket portion of the recess circumferential surface. A chamfering cutting insert may be retained by the resilient clamping member, without the use of an additional, separate clamping device.

A whirling tool for machining a workpiece, having: three or a multiple of three cutting plates, wherein each of the cutting plates comprises at least one cutting edge; a cutting plate holder having a plurality of cutting plate receptacles, wherein each of the cutting plate receptacles is configured to receive one of the cutting plates, wherein the cutting plate receptacles are disposed so as to be distributed in a circumferential direction across the cutting plate holder; and a plurality of fastening elements for releasably fastening the cutting plates in the cutting plate receptacles of the cutting plate holder; wherein the cutting plates comprise at least two different kinds of cutting plates, wherein at least one cutting plate of a first kind, and one cutting plate of a second kind are provided for each group of three cutting plates that are disposed beside one another on the cutting plate holder, wherein the cutting plate of the first kind differs from the cutting plate of the second kind by an overall geometry, by a dimension of the at least one cutting edge, and by a shape of the at least one cutting edge.

In a formed end mill, a peripheral cutting edge has a smaller-diameter cutting part and a larger-diameter cutting part. An imaginary line obtained by lining up a deepest point of a flute bottom of a chip discharge flute, which appears in a cross-sectional view perpendicular to an axis of an end mill body, in an extending direction of the chip discharge flute is defined as a virtual flute bottom line. A flute helix angle, which is formed between the virtual flute bottom line and the axis, in a side view when the end mill body is seen from a radial direction orthogonal to the axis, is 0 degrees or more at a distal end part of the chip discharge flute in the axial direction, and increases gradually from the distal end part toward a posterior end in the axial direction.

Within examples, systems and methods for forming a hole through at least one layer of a material are provided. An example cutting tool for forming such a hole may include a body, and a first portion of the body having a first diameter and a first radial rake angle. The cutting tool also includes a second portion of the body adjacent the first portion, the second portion having a second diameter and a second radial rake angle, wherein the second diameter is different than the first diameter, and wherein the second radial rake angle is different than the first radial rake angle.

A milling tool for milling a material is provided. The milling tool comprises a tool shank having an axis of rotation, and further comprises a tool head at one end thereof. The tool head comprises at least two tiers, each tier comprising a plurality of flutes extending circumferentially around the tool head. The tool head comprises superhard material and the tiers are axially displaced from each other and separated by a non-cutting portion of the tool head.

A machine tool includes a fixed pillar, a finishing cutting tool with a first teeth portion, a rough cutting tool with a second teeth portion, a punching tool with a third teeth portion, and a support member passing through the punching tool, the rough cutting tool, and the finishing cutting tool and detachably mounted to the fixed pillar. The finishing cutting tool, the rough cutting tool, and the punching tool are arranged sequentially in a direction away from the fixed pillar. The outer diameter of the fixed pillar is smaller than the diameter of the finishing cutting tool. The diameter of the finishing cutting tool is greater than the diameter of the rough cutting tool. The diameter of the rough cutting tool is greater than the diameter of the punching tool. The present invention further provides a method of machining a box-end wrench by using the aforesaid machining tool.

A circumferential milling tool (10) for cutting metal is described, which comprises a milling cutter body (14) that can be rotated about a tool axis (12) and has at least two cutting edge groups. The arrangement of the first cutting edge group results in a first average chip thickness for the cutting edges (16) of the first cutting edge group and a second average chip thickness for the cutting edges (18, 20, 22, 24, 26) of the second cutting edge group. The first average chip thickness and the second average chip thickness are substantially equal. A method for arranging cutting edges (16, 18, 20, 22, 24, 26) on a circumferential milling tool (10) that can be rotated about a tool axis (12) is presented as well.

Within examples, systems and methods for forming a hole through at least one layer of a material are provided. An example cutting tool for forming such a hole may include a body, and a first portion of the body having a first diameter and a first radial rake angle. The cutting tool also includes a second portion of the body adjacent the first portion, the second portion having a second diameter and a second radial rake angle, wherein the second diameter is different than the first diameter, and wherein the second radial rake angle is different than the first radial rake angle.