An indexable cutting insert has a central mounting portion and two cutting portions. The central mounting portion has opposing upper and lower surfaces. The lower surface has two abutment elements associated therewith, each abutment element having two diverging abutment surfaces forming two abutment angles. The two cutting portions extend away from the central mounting portion, have distal cutting edges, and are entirely located in diagonally opposite imaginary quadrants of four quadrants defined by two mutually perpendicular quadrant planes. Two abutment bisector planes bisecting the two abutment angles and one of the quadrant planes are parallel or coincident. In a top view, the two cutting portions extend away from the central mounting portion in opposite directions. Two cutting bisector lines parallel to the two directions and bisecting the two cutting edges are mutually offset. A cutting tool has an insert holder and the cutting insert removably retained therein.

A pocket hole jig contains: a body, a holder, and a fitting sleeve. The body includes at least one accommodation orifice configured to house a driller, each accommodation orifice tilts downwardly and extends toward a bottom of the body, wherein the body also includes a first marking portion arranged on a first side surface thereof. The holder includes an operation room in which the body is fitted and moves relative to the holder, at least one through groove formed on a bottom of the holder so as to correspond to the at least one accommodation orifice, and a first scale section arranged on a first side surface thereof and aligning with the first marking portion. The fitting sleeve is fitted with the driller, and the holder further includes a depth scale section for measuring depths of holes drilled on wooden workpieces by the driller.

A general purpose hole saw guide and a method of forming holes through surfaces, without the need of a centering bit, are provided. The hole saw guide includes a circular disk with concentric grooves on its surface. The disk is transparent and portable for placement on a surface through which a hole is to be drilled to facilitate the centering and stabilizing control of a hole saw on the surface. The method includes the steps of providing a transparent disk having concentric grooves; positioning the disk on a surface; mounting the disk to the surface; inserting a hole saw that is fitted to a drill into the grooves of the disk; drilling a hole through the disk and surface beneath it; and removing the disk from the surface after the hole has been drilled.

According to one implementation, a drilling machine includes at least one drilling structure, a travelling machine, a reader and a controlling device such as a controlling circuit. The at least one drilling structure drills an object to be drilled. The travelling machine positions the at least one drilling structure in a travelling direction of the travelling machine by travelling in a direction different from a drilling direction. The reader reads information recorded on at least one integrated circuit tag attached to at least one drilling plate attached to the object to be drilled. The controlling device controls the travelling machine based on the information read by the reader.

An indexable cutting insert for a cutting tool for material processing machines has a first axis of symmetry, at least one fastening bore passing through the indexable cutting insert parallel or coaxially to this first axis, two groups of main cutting edges, secondary cutting edges and cutting corners having a second axis of symmetry rotationally symmetrically opposite one another. At least the main cutting edges enclose an acute cutting edge angle with a plane oriented orthogonally to the first axis of symmetry. A cutting insert holder holds and fixes an indexable cutting insert. A recess for receiving the indexable cutting insert is on an elongated base body with polygonal cross-section. A support surface for supporting the indexable cutting insert is rotated about the base-body longitudinal axis and tilted about a second axis, a line of intersection between the rotated support surface and a plane perpendicular to the longitudinal axis.

A cutting tool, system, method and computer program product for increasing traceability of at least a first cutting edge of a cutting tool. The method includes detecting at least a first identification marker on the cutting tool, reading the at least first identification marker, decoding the at least first identification marker to determine at least a first cutting edge information data included in the machine readable code of the at least first identification marker, generating a first cutting tool identification data based on at least the at least first cutting edge information data, and storing at least any of the at least first cutting tool identification data and the at least first cutting edge information data in a memory.

An insert tool, in particular a drilling tool, having a base module is disclosed. The base module has a first portion, which in particular includes a conveying helix, and a second portion, which includes cutting bodies with preferably at least two rake faces. The second portion is connected to a first end of the first portion in an integrally bonded manner. The base module is connected, at a second end, to an, in particular hardened, insertion end in an integrally bonded manner by way of in particular a friction welding method.

An indexable cutting insert has a central mounting portion and two cutting portions. The central mounting portion has opposing upper and lower surfaces. The lower surface has two abutment elements associated therewith, each abutment element having two diverging abutment surfaces forming two abutment angles. The two cutting portions extend away from the central mounting portion, have distal cutting edges, and are entirely located in diagonally opposite imaginary quadrants of four quadrants defined by two mutually perpendicular quadrant planes. Two abutment bisector planes bisecting the two abutment angles and one of the quadrant planes are parallel or coincident. In a top view, the two cutting portions extend away from the central mounting portion in opposite directions. Two cutting bisector lines parallel to the two directions and bisecting the two cutting edges are mutually offset. A cutting tool has an insert holder and the cutting insert removably retained therein.

A system, method and computer program product arranged for managing the operation of a machine and tracing the use of a cutting edge of a cutting tool used in the operation of the machine. The method includes the steps of reading an identification marker of a cutting edge of a cutting tool inserted into the machine, decoding the identification marker to determine a cutting edge information data associated with the cutting edge, obtaining machine operation data associated with the operation of the machine from the machine, and generating a first association data indicative of the cutting edge information data and the machine operation data.

An object of the present invention is to obtain information corresponding to information, which is readable by sight, but no longer visible. The present invention provides a chuck mechanism comprising: a chuck body including an installation surface and a side surface; and a master jaw provided on the installation surface of the chuck body and configured to move in a radial direction of the chuck body, wherein a first marking is provided on the installation surface of the chuck body, the first marking is product information of the chuck mechanism, the product information has a readable form by sight, and at least one second marking is provided on the installation surface or the side surface of the chuck body, the second marking is information including at least the product information of the first marking, and the information of the second marking has a coded form.