Abstract: A collet assembly of improved stability has a collet, an axial limiting assembly, a cutter, a pin, and multiple damping elements. The collet has a containing space, a pin-receiving groove, a connecting groove, and multiple receiving grooves. The containing space is formed through the collet. The pin-receiving groove is formed through the collet. The connecting groove is recessed on the collet. The multiple receiving grooves are recessed in the collet. The axial limiting assembly is mounted to the collet. The cutter has a limiting groove and a mounting end. The limiting groove is recessed on the cutter. The mounting end abuts against the limiting assembly. The pin extends into the pin-receiving groove and abuts against the limiting groove of the cutter. Each one of the multiple damping elements is received in a respective one of the multiple receiving grooves of the collet. A collet of improved stability is also provided.

Abstract: A clamp arrangement for securing an accessory to an oscillating power tool can include a clamp assembly including a first clamp member that moves relative to the accessory between a closed position wherein the clamp assembly retains the accessory and an open position wherein the first clamp is offset from the accessory permitting removal of the first accessory from the clamp assembly. The clamp assembly can further comprise a second clamp member having a first portion that opposes the first clamp member and cooperates with the first clamp member to clamp the accessory between the first and second clamp members. An attachment plate can carry the clamp assembly. The attachment plate can have a first mating detail formed thereon that is configured to selectively and removably mate with a complementary second mating detail on the power tool in an assembled position.

Abstract: A quick change tool includes a tool element, an elongate body having a drive shaft and attaching means for attaching the tool element to the body, and a receiving element for attaching to the tool element. The receiving element includes a through-hole for receiving the body by sliding through the receiving element in the longitudinal direction of the body. The receiving element is configured to co-act with the attaching means to lock the tool element relative to the body at least in an axial direction of the drive shaft. The attaching means includes a resiliently movable locking pin arranged spring-mounted in the body. The receiving element comprises a locking hole configured to receive the locking pin therein in a snapping manner. A pin guiding groove extends between a receiving opening of the through-hole and the locking hole for guiding the locking pin from the receiving opening to the locking hole.

Abstract: A substrate can be placed on a placing table horizontally. When placing the substrate on the placing table having multiple protrusions configured to support the substrate, the substrate is attracted to the placing table while performing a suction from a suction hole configured to attract a position, different from positions located above the protrusions, of the substrate placed on the placing table, and then, a suction force of the suction hole is reduced. Accordingly, it is possible to place the substrate on the placing table while correcting the flexure. Further, the substrate can be horizontally placed on the placing table since deformation of the wafer, caused by attracting a bottom surface of the wafer strongly, is suppressed.

Abstract: The present technology presents system of a guide for widening a drilled hole. In various embodiments the system comprises a hub including a circular central member and a plurality of slots for shims around a circumference of the circular central member. Embodiments include a plurality of shims with the plurality of shims being fit into the plurality of slots around the circumference of the circular central member. Furthermore, the plurality of shims each include a narrow end and a wide end with the narrow end of each of the plurality of shims being in a same direction and the wide end of each of the plurality of shims being in an opposite direction to the narrow end allowing for the guide to fit securely into the existing hole before drilling the new hole.

Abstract: Provided is a drill that can drill with good accuracy without over-processing during deburring. The drill includes: a drill main body that is rotated around a central axis; a main cutting edge provided at a leading end of the drill main body; and a deburring cutting edge that is provided on a base end side of the drill main body, adjacent to the main cutting edge, and performs deburring. The deburring cutting edge is similar in diameter to the main cutting edge and has an angle (?) smaller than an angle (?) formed by the main cutting edge relative to the central axis.

Abstract: A wafer support device includes a susceptor, at least one lift pin, at least one lift pin support base and at least one pad. The susceptor has a bottom surface and a top surface configured to support a wafer. The susceptor has at least one through hole extending between the bottom surface and the top surface. The lift pin is at least partially telescopically received in the through hole of the susceptor. The lift pin support base has at least one coupling feature thereon. The pad is detachably coupled with the coupling feature and supports the lift pin.

Abstract: A rotary cutting tool includes a base material, a first diamond layer, and a second diamond layer. The base material includes a head portion, a body portion, and a shoulder portion defining a boundary portion between the head portion and the body portion. The first diamond layer covers the body portion and the shoulder portion and exposes the head portion. The second diamond layer covers the head portion, is provided on the first diamond layer in the shoulder portion, and does not cover the body portion.

Abstract: A rotary tool for machining workpieces, said tool comprising a base body having a clamping section and a tool head comprising a cutting region having at least one cutting edge. The tool head comprises at least one coolant channel for supplying a cooling and/or lubricating fluid into the cutting region. At least some sections of the coolant channel have a cross-section that tapers in the direction of the tool head. In this region, at least two coolant outlet lines branch off from contact points of the coolant channel in the direction of the tool head upper surface, and are offset in the axial longitudinal direction of the coolant channel. Also, a production method for a rotary tool, in which the blank of the tool is produced by a sintering method in which the coolant channel of the tool is formed integrally in the sintering method at the same time.

Abstract: A drilling insert has a central portion with a central axis, and three circumferentially spaced tip portions. Each tip portion has a first axis and two diverging first cutting edges with radially outermost cutting points defining a first circle lying on a tip plane perpendicular to the first axis and having a first cutting diameter. In a view along one of the first axes, a second circle having a second diameter circumscribes the drilling insert, and the first cutting diameter is at least sixty percent of the second diameter. A cutting tool rotatable about a tool axis with a tool cutting diameter includes the drilling insert, and a second cutting insert having a second cutting edge. One of the tip portions is operative having its first axis coaxial to the tool axis, and the second cutting edge extends radially outward of the first cutting diameter.

Abstract: A universal rotating chuck system capable of accommodating multiple small-batch or one-off machining jobs, involving workpieces of different diameter and composition, comprises a rotating chuck having multiple jaws that may be adjusted positionally inward or outward towards the longitudinal centerline of the workpiece or removed entirely. The chuck is rotated by a dual-motor system driving an inner and outer shaft, where the inner shaft is selectively coupled to the outer shafts to rotate independently and adjust the jaws, or rotate alongside the outer shaft to rotate the chuck. In operation, the system is capable of conducting numerous machining operations independent of direct user intervention, including loading/unloading workpieces, loading/unloading tools, measuring tools and workpieces for quality control, and storage.

Abstract: A collet includes an axially rearward end and an axially forward end; a nose portion; a body portion having an outer surface and an inner surface for engaging a shank of a tool; a plurality of slots extending from the inner surface to the outer surface; and a plurality of coolant channels disposed within the collet between the plurality of longitudinally extending slots and extending entirely from the axially rearward end to the axially forward end of the collet. Slots include a first slot extending from the axial forward end to within an intermediary zone, a second slot extending from the axial rearward end to at least the tool holder engagement zone such that the second slot does not intersect the first slot, and a third slot from within the tool engagement zone to within the intermediary zone such that the third slot circumferentially overlaps the first and second slots.

Abstract: The invention relates to a machine tool, in particular a hand held machine tool, which has a tool receiving device that is movable, in particular in an oscillating manner, around an output shaft. The tool receiving device is designed to hold a tool device on the machine tool in such a manner that the output shaft and a tool rotation axis substantially coincide. The tool receiving device has at least one torque transmission region and a holding device. In order to transmit a driving force to the tool device, the torque transmission region has at least two output area regions that are arranged at a distance from said output shaft and each have a multiplicity of surface points. Here, the tangent planes to said surface points are inclined in regard to an axial plane which includes said output shaft. Furthermore, the tangent planes are inclined in regard to a radial plane which extends perpendicularly to the output shaft.

Abstract: A pocket hole jig system is presented having a guide assembly having a drilling face and a plurality of drill guides that intersect with the drilling face. The main body of the guide assembly is formed of a first material that is rigid and provides structural integrity to the guide assembly. The first material has a low coefficient of friction. A grip layer is placed on the drilling face of the guide assembly. The grip layer is formed of a softer material that has a higher coefficient of friction than the material that forms the main body of the guide assembly. When placed on a workpiece, the grip layer provides increased grip on the workpiece thereby holding the workpiece and guide assembly in place and requiring less clamping pressure to hold the workpiece and guide assembly together.

Abstract: A drilling system and methods provide stability and cutting performance to produce holes having desired straightness and other characteristics. The system may include a cutting head provided with a central cutting system and first and second side cutting inserts. The tool provides a major diameter with the OD cutting margins on the replaceable side inserts, as well as possibly cutting margins on the center cutting member. Adjustment mechanisms may be provided to adjust the center cutting member and/side cutting inserts.

Abstract: Provided is a chuck device that allows appropriate and easy setting of a discharging direction of working fluid. A chuck device configured to be attached to a spindle of a machine tool for gripping a cutting tool, in which inside the chuck device, there are provided a passage in which a working fluid flows and a discharge opening provided at a leading end opening of the passage through which the working fluid is discharged toward to the cutting tool. A discharging direction of the working fluid from the discharge opening is set opposite to a rotational direction of the cutting tool and set with a tilt of an angle calculated by a mathematical formula to a tangential direction of a rotation trajectory of the center of the discharge opening relative to a direction of an axis of the cutting tool.

Abstract: The present disclosure generally relates to substrate supports for semiconductor processing. In one embodiment, a substrate support is provided. The substrate support includes a body comprising a substrate chucking surface, an electrode disposed within the body, a plurality of substrate supporting features formed on the substrate chucking surface, wherein the number of substrate supporting features increases radially from a center of the substrate chucking surface to an edge of the substrate chucking surface, and a seasoning layer formed on the plurality of the substrate supporting features, the seasoning layer comprising a silicon nitride.

Abstract: A work tool includes a spindle and a clamp shaft. The spindle is supported to be rotatable around a driving axis defining an up-down direction of the work tool. The clamp shaft includes a shaft part and a fixing part. The shaft part extends coaxially with the spindle. The fixing part is coupled to the shaft part on a lower side of the spindle. The clamp shaft is supported to be movable in the up-down direction relative to the spindle. The clamp shaft is configured to be biased upward and to fix the tool accessory to a lower end portion of the spindle by the fixing par. The fixing part is configured to be removable from the shaft part and to be integrally coupled to the shaft part only by moving upward relative to the shaft part.

Abstract: The invention provides a machine tool capable of expanding the slidable range of the moving unit without making the oil feeding system complicated. A machine tool in which a moving unit slides against a supporting unit with a sliding surface of the supporting unit facing a sliding surface of the moving unit, comprises a first oil groove formed on an unexposed portion of the sliding surface of the supporting unit; a second oil groove formed on an unexposed portion of the sliding surface of the moving unit; and an oil inlet formed on one of the first oil groove and the second oil groove. Lubricant fed through the oil inlet is supplied to the other of the first oil groove and the second oil groove.

Abstract: A hybrid holding device used in a milling machine, comprising a base with mounting structures for detachably fastening the hybrid holding device securely onto a workbench of the milling machine in a fixed stationary position. The hybrid holding device further includes moveable multi-jaw assembly that includes at least three jaws that directly receive and securely hold a workpiece without an adapter.