Abstract: A square-shaped bar-peeling insert and insert-holder designed with pockets to hold two such square-shaped inserts. Each insert has four peripheral sub-surfaces and corners. Between each adjacent pair of corners is a cutting edge which includes a straight wiper sub-edge and two at least partially curved peeling sub-edges respectively located on opposing sides of the wiper sub-edge. The corners of the insert are inwardly disposed relative to an imaginary square formed by the sub-edges.

Abstract: A cutting insert may include a base body, a first part and a second part. The base body may include a first surface, a second surface, a first lateral surface, a second lateral surface, a first recess and a second recess. The first part may be located in the first recess. The second part may be located in the second recess. The first recess may include a first bottom surface, a first wall surface and a first valley line located on an intersection of the first bottom surface and the first wall surface. The second recess may include a second bottom surface, a second wall surface and a second valley line located on an intersection of the second bottom surface and the second wall surface. The first valley line may intersect with the second valley line in a perspective view of the first surface.

Abstract: A cutting tool includes a grip part and a cutting part. The grip part and the cutting part have a channel for guiding fluid supplied from outside to an outflow port. The channel includes a plurality of first channels that extend at least partially parallel to a rotational center axis, and second channels that extend from the first channels toward cutting edges of cutting inserts. In the cutting tool, the number of first channels is smaller than the number of cutting edges arranged in a circumferential direction.

Abstract: A cutting tool includes a grip part and a cutting part. In the grip part and the cutting part, a channel for guiding fluid supplied from the outside to an outflow port is formed. The channel includes: a first channel extending in parallel to a rotational center axis and linearly from an end part of the grip part on an opposite side to the cutting part; and a second channel extending linearly from the first channel toward a cutting edge of a cutting insert. The first channel is formed such that a center axis thereof is decentered so as not to match the rotational center axis.

Abstract: A cutting insert for a rotary drill tool and drill tool assembly in which an insert and a support body are coupled via a plurality of axial support surfaces. The support surfaces include a first declined orientation in the axial direction and a second declined orientation in the circumferential direction, so as to manage and control transmission of loading forces at the region of mounting the insert at the support body.

Abstract: A drilling tool comprising a tool holder that extends along a central axis and comprises a first cutting insert receptacle having a first abutment surface oriented parallel to the central axis.

Abstract: A spindle arrangement for a machine tool comprising a spindle housing, which can be inserted and fixed in the machine tool, a spindle shaft being accommodated in the spindle housing, and a spindle head projecting from the spindle housing. At least one optical element is located on or near the spindle head, the optical element emits light in the region of the spindle head and/or to optically capture the region near the spindle head. At least one recess is provided on or near the spindle head, the optical element being insertable into the recess. The optical element is provided with at least two contacts arranged on the front face on different radial levels or in different axial regions relative to the screw axis on the end of the optical element which is screwed into the recess.

Abstract: A rotary tool can be adapted for removing material from a workpiece such as a lower receiver. A rotary tool can have an adapter with a major diameter, and a cutter head with a minor diameter. The major diameter of the adapter can reduce deflection and chatter, while the minor diameter of the cutter head can be used to manufacture lower receivers with accuracy. The rotary tool can be adapted to be engaged with a rotary power tool.

Abstract: A cutting insert has a plate shape centered on an insert center axis. The cutting insert includes a front surface and a back surface facing an insert axial direction, an outer peripheral surface facing outward in an insert radial direction, and a cutting edge at an intersecting ridge line between the front surface and the outer peripheral surface. The back surface has a flat shape perpendicular to the insert center axis. The outer peripheral surface includes a flank surface coupled. The flank surface is inclined inward in the insert radial direction as extending in the insert axial direction from the front surface side to the back surface side. The front surface includes a rake surface. The rake surface is inclined from a back surface side to a front surface side in the insert axial direction as extending inward in the insert radial direction from the cutting edge.

Abstract: A machining tool may include an elongated body forming a duct therewithin, the duct extending from a proximal inlet at a proximal end of the body to a distal portion of the body having a first lateral opening. The tool may also include a plunger movable between a proximal first position and a distal second position along the duct. The tool may also include a resilient element to press the plunger towards the proximal inlet, and a pivotally deployable blade rotatable between a deployed state, when the plunger is in the first position, and a retracted state, when the plunger is in the second position, wherein the blade is deployable from the first lateral opening.

Abstract: It is an object of the present invention to provide a rotary cutting tool that can divide chips at an appropriate size, suppress the incidence of edge chipping and damage attributed to chips to the cutting tool and a workpiece, extend the tool service life with regard to the machining of hard, brittle materials, and improve machining efficiency. The rotary cutting tool includes a hard coat film 3 coated onto a tip end section of a tool body 1 having a chip discharge groove 2. A rake face 6 is concavely provided in a cutting edge-side chip discharge groove formation surface 4 constituting the chip discharge groove 2 of the tool body 1, from a cutting edge 5 and along the cutting edge 5.

Abstract: A milling head for a ball track milling cutter includes an imaginary center axis, a first, working-side end and a second, clamping-side end opposite the first end when viewed along the central axis, and comprising at least one geometrically defined cutting edge, extending along a cutting edge profile of the cutting edge from a first cutting edge end facing the first end of the milling head in the direction of the second end of the milling head up to a second cutting edge end facing the second end of the milling head, wherein at least one cutting edge is formed as an intersecting line between the rake face associated with at least one cutting edge and a first flank face associated with at least one cutting edge, wherein at least one cutting edge is assigned a negative rake angle, a first clearance angle and a wedge angle.

Abstract: According to one implementation, an end mill for orbital drilling includes: a shank; a first cutting edge formed in a peripheral portion of the shank; and a second cutting edge formed in a bottom portion of the shank. At least a chamfered edge is formed on a first ridgeline between a first rake face and a first flank of the first cutting edge.

Abstract: A cutting insert for drilling includes an upper surface, a lower surface formed on an opposite side of the upper surface, a side surface connecting the upper surface and the lower surface; a cutting edge formed at an intersection of the upper surface and the side surface, and a ridge portion formed to protrude upward from the upper surface to facilitate chip control. The ridge portion includes a ridge body spaced apart from the cutting edge and disposed at a central portion of the cutting insert for drilling; and a ridge extension portion extending from a vicinity of a corner of the ridge body in a direction parallel to the cutting edge.

Abstract: Various embodiments of power tool and method of operating same are described. The power tool may include a first position sensor, a second position sensor, a third position sensor, and a controller. The first, second, and third position sensors may each generate a signal indicative of a distance between the respective position sensor and a workpiece. The controller may determine one or more angles of the power tool with respect to the workpiece based on the first, second, and third signal and present an indication as to whether the one or more angles are within a predetermined range. The controller may further obtain a depth measurement based on the first signal, the second signal, and the third signal and generate, based on the obtained depth measurement, one or more control signals that control operation of the power tool.

Abstract: A cutting insert for a cutting tool includes a cutting edge of PCBN or PCD formed in a corner region in a transition between a side surface and a chamfer formed in an upper side of the cutting insert. A chip breaker is formed in the chamfer inside of the cutting edge, extending between a lower chamfer portion and an upper chamfer portion. The chip breaker includes a chip breaker bottom connected to the lower chamfer portion and a chip breaker wall extending from the upper chamfer portion to the chip breaker bottom. An upper transition is formed between the upper chamfer portion and the chip breaker wall. As seen in a top view, the upper transition follows a smoothly curved path including a convex middle portion. As seen in cross-section, perpendicular to the cutting edge, the chip breaker wall and the chip breaker bottom form a smooth concave profile.

Abstract: A cutting insert and a cutting tool assembly for cutting a workpiece. The cutting tool assembly includes a cutting insert having an upper surface that has a quadrilateral shape so as to include first to fourth insert corner portions, and a shim configured to support the insert. The insert includes an upper surface and a lower surface on which first to sixth inclined mounting portions are respectively formed. The shim simultaneously supports the first to third inclined mounting portions, or simultaneously supports the fourth to sixth inclined mounting portions.

Abstract: A cutting insert 2 comprises a peripheral side surface 30 which is parallel to a central axis O of a first end surface 10 and a second end surface 20. The peripheral side surface 30 comprises a first side surface 31 facing a first major cutting edge 11, a second side surface 32 facing a first wiper edge 12, and a third side surface 33 facing a first inner edge 13. A flank 311 of the first major cutting edge 11 and a flank 321 of the first wiper edge 12 are inclined such that the flank 311 and 321 approaches the central axis O as it heads toward the first end surface 10. The flank 311 of the first major cutting edge 11 is located on a different plane from the first side surface 31. The flank 321 of the first wiper edge 12 is located on a different plane from the second side surface 32. Meanwhile, a flank of the first inner edge 13 is located on the same plane as the third side surface 33.

Abstract: Hole-saws are provided herein, and more specifically to hole-saw assemblies and processes having adjustable platters for multiple simultaneous saw components, optional elimination of a guide drill, and the ability to retrieve cores of a sawed work piece before sawing completely through the workpiece. One hole-saw device, may have a motive force; a base plate rotatable by the motive force; cutters; and locking mechanisms to mount the base plate to the cutters.

Abstract: A clamp is disclosed for a key making machine. The clamp may have an anvil, and a door movable toward the anvil to sandwich a key blank therebetween. The clamp may also have a gate pivotally connected to the door and configured to engage the key blank.