Abstract: The present disclosure is directed to a drill and implant device and method for using the same. The device is configured to drill a hole into an object, such as a bone; stop once a desired depth has been reached; and subsequently insert an implant, such as a screw or pin, into the hole. The device drills the hole and inserts the implant under its own power. The device may perform desired actions automatically or manually.

Abstract: The present disclosure is directed to a drill and implant device and method for using the same. The device is configured to drill a hole into an object, such as a bone; stop once a desired depth has been reached; and subsequently insert an implant, such as a screw or pin, into the hole. The device drills the hole and inserts the implant under its own power. The device may perform desired actions automatically or manually.

Abstract: Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor. A cutting insert is adjusted by moving a resilient web with an adjusting screw.

Abstract: A method of installing cable through material, for example, concrete, wood, masonry, plastic steel, or the like comprising a drill bit with a distal end having a hollow tip with an attachment mechanism for receiving the cable. The drill bit is drilled through the material, and left in place while the cable is attached to the proximal end of the drill bit. There is no need to remove the drill bit from the aperture or material to attach the cable thereto. After attachment to the drill bit, the cable is inserted through the aperture with the drill bit and removed from the drill bit after it passes through the material so it can be attached to a receiver device.

Abstract: An insert for a deburring tool is used to machine openings of bores that are formed in metal work pieces. In an exemplary embodiment, the insert has an inward portion, a central portion connected to the inward portion, and an outward portion connected to the central portion. The central portion has a dovetail-shaped retaining feature that attaches the insert to the deburring tool.

Abstract: Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.

Abstract: A tool for working a workpiece comprises an elongate member and a cam member. The elongate member comprises at least two extremities comprising at least one blade member. The at least two extremities are operable to separate in response to a pressurized medium. A conduit is in fluid communication with the extremities, and a pair of vents are in fluid communication with the conduit. The vents are operable to expel fluid communicated through the conduit. The cam member comprises an inner surface defining an opening. The inner surface of the cam resists expulsion of fluid from the vents, such that the cam and vents are operable to vary the pressure of fluid communicated through the conduit. The pressure variation varies the separation of the extremities as the elongate member is advanced through the cam toward a workpiece. The tool may be used to create bores having a non-cylindrical profile.

Abstract: A tool has a slot provided between a pair of extremities at its distal end. The extremities have cutting blades mounted thereon. The slot is configured to receive a plate. The tool has a conduit running along its axis for communication of pressurized fluid to the slot and plate. The plate directs flow of the pressurized fluid outward toward the extremities. The resulting outward force causes the extremities to bend outward, thereby urging the cutting blades outward for cutting, reaming, or other working of the workpiece. The resilience of the tool causes the extremities to return back inward when the fluid pressure is reduced. A plate may be configured to receive a wafer for transferring force from the pressurized fluid to the extremities. Some embodiments of the plate have an adjustment feature that is operable to selectively adjust the flow rate or pressure of fluid directed toward the extremities.

Abstract: A tool for deburring holes is proposed, comprising a basic body, which rotates about a rotation axis of the tool and has a clamping shank, and at least one lip holder elastically movable relative to the basic body, the lip holder comprising at least one cutting element which projects radially with respect to the rotation axis and has at least one lip leading edge oriented at least partly transversely to the cutting direction, which tool exhibits improved deburring and greater endurance compared with the prior art. This is achieved by the cutting element (8, 30, 31) being made of carbide.

Abstract: A boring device is inserted into a lateral pipe to bore a pipe lining material inserted into a main pipe across the lateral pipe intersecting therewith and a portion of which blocks an opening of the lateral pipe that communicates with the main pipe. The boring device has a rotatable shaft, a bearing member for rotatably bearing the rotatable shaft, and a boring blade mounted on the rotatable shaft for rotation therewith to bore through the portion of the pipe lining material that is blocking the opening of the lateral pipe. A supporting member is mounted on one side of the bearing member. An inflatable bag is mounted on the other side of the external periphery of the bearing member. The inflatable bag is inflatable in the lateral pipe so that the inflatable bag and the supporting member are pressed against an internal peripheral surface of the lateral pipe.

Abstract: A deburring tool includes a blade having a cutting head portion, an anchor portion, and a retention spring. An arbor is adapted to removably mount the blade such that the head portion of the blade is adapted to be elevated a predetermined distance from the arbor in an unstressed condition of the blade. The blade is sufficiently resiliently yieldable such that the head portion of the blade can move inwardly relative to the arbor during deburring operations. A holder is adapted to mount the arbor and an adjustment member adapted to operatively engage the anchor portion of the blade. The anchor portion of the blade is adapted to move in response to adjustment of the adjustment member in a direction substantially opposite that of the head portion and flex to elevate the head portion relative to the arbor for deburring operations or recess the head portion relative to the arbor.

Abstract: A tool for working a workpiece has a slot provided between a pair of extremities at its distal end. The extremities have cutting blades mounted thereon. The slot is configured to receive a plate. The tool has a conduit running along its axis for communication of pressurized fluid to the slot and plate. The plate directs flow of the pressurized fluid outward toward the extremities. The resulting outward force causes the extremities to bend outward, thereby urging the cutting blades outward for cutting, reaming, or other working of the workpiece. The resilience of the tool causes the extremities to return back inward when the fluid pressure is reduced. A plate may be configured to receive a wafer for transferring force from the pressurized fluid to the extremities.

Abstract: The invention relates to a deburring tool with a quick change knife, which is formed by at least two parts, namely a guide sleeve having a larger diameter and a center bore, and a base body that can be inserted in the center bore in an axial direction. The base body can be secured in the center bore. A knife groove is arranged on the base body that can receive the knife to be secured, forming a pivot support in the base body. Due to this special support, the knife can be easily exchanged even when the deburring diameters are small, for example, less than 4 mm, while still being able to absorb large deburring forces.

Abstract: A tool for working a workpiece has a slot provided between a pair of extremities at its distal end. The extremities have cutting blades mounted thereon. The slot is configured to receive a plate. The tool has a conduit running along its axis for communication of pressurized fluid to the slot and plate. The plate directs flow of the pressurized fluid outward toward the extremities. The resulting outward force causes the extremities to bend outward, thereby urging the cutting blades outward for cutting, reaming, or other working of the workpiece. The resilience of the tool causes the extremities to return back inward when the fluid pressure is reduced. A plate may be configured to receive a wafer for transferring force from the pressurized fluid to the extremities.

Abstract: A deburring tool is adapted to be rotatably mounted in a chuck of a drive motor to perform deburring operations. The deburring tool includes an arbor and a blade having a cutting head portion defined at one end thereof and a clip portion defined substantially at the other end of the blade opposite the head portion. The blade is mounted relative to the arbor such that the blade projects a predetermined distance from the arbor in an unstressed condition. The blade is sufficiently resiliently yieldable such that it can move inwardly with respect to the arbor during deburring operations. The clip portion is adapted to flex to provide a spring-like force acting along the blade toward the head portion to facilitate insertion and removal of the blade relative to the deburring tool without use of any tools.

Abstract: In a numerical-control machine tool use is made of a mandrel-holding structure that makes it possible for the machine tool to be used to smoothing/facing and polishing purposes under utilization of traditional pan-like tools, in which the force acting on the working tool is delivered by a pre-established adjustable pneumatic pressure, while the weight of the moving parts of the mandrel is compensated for by a compression spring. When the pneumatic pressure is substituted for by an oleodynamic, i.e. oil-pressure force acting in the opposite direction, the machine switches over to normal operating conditions as a regular numerical-control machine tool.

Abstract: The invention relates to a drilling tool comprising a tool holder, on whose front face interchangeable cutting attachments are fixed and which has a shaft part on the opposite end to said attachments and an adjusting device for minimizing the tolerance measurement determined by the drilling system. In order to improve the aforementioned adjusting device, the invention is characterized in that the tool holder (1) has groove-shaped recesses (5, 8), which lie on respective diametrically opposed sides and which are eccentrically arranged on a plane that is perpendicular to the longitudinal axis of the tool holder. Said groove-shaped recesses have a half-cylinder extension on each of the sides facing the longitudinal axis of the tool holder. A bolt (2, 3), whose dimensions correspond to the size of the cylinder, is located in each extension. The first bolt (2) is connected to a tapered adjusting element (9) using a double-threaded screw (11) which is positioned radially in relation to the tool holder (1).

Abstract: The invention is an apparatus for aerating soil proximate to a plant with root system using a hand drill system, made of a polymer drill bit having a shaft with a vertical axis that is generally cylndrically shaped having a connector end and a drill end, an indentation in the drill bit between one-fourth and one-third of the overall length of the polymer drill bit from the drill end, and a drill with a connector to engage the polymer drill bit for forming a bore hole in soil adjacent a plant with root system.

Abstract: A deburring tool capable of removing burrs and placing chamfers on circumferential edges surrounding both front and back side openings of a borehole, wherein the tool includes an elongated cylindrical arbor, a resilient arm section, and a replaceable cutting insert. In use, the rotating deburring tool is steadily advanced in a forward axial direction until the replaceable cutting insert encounters the circumferential edge of a front side opening, whereby the tool removes any burrs and creates a chamfer on that opening. Continued forward axial movement causes the replaceable cutting insert to retract within the arbor such that the tool continues through the borehole without damaging its interior surface. As the tool emerges from the back side opening of the borehole, the replaceable cutting insert is again allowed to extend out of the arbor and into a deburring position.

Abstract: A drilling tool includes a tool main body having a cutting edge at its forward end, a groove provided in the outer peripheral surface provided at the forward end of the tool main body, a cartridge accommodated in the groove and capable of elastic deformation in a radial direction of the tool main body, and a burr removing tip in the form of a substantially triangular flat plate detachably mounted to the cartridge and capable of protruding from and retracting into the outer peripheral surface of the tool main body. The cartridge is equipped with two holding walls which are in face contact with the two side surfaces of the three side surfaces corresponding to the three sides of the triangle formed by the burr removing tip. The two side surfaces of the burr removing tip are in face contact with the two holding walls, and the remaining one side surface is mounted to the cartridge in an open state.

Abstract: A deburring machine essentially comprising a cutting tool (13) which pivots on an axis (16) that is perpendicular to the axis of rotation (X) and which may be retracted inside the cover (11) by a wedge (10) so that the cover (11) may be inserted through a hole; the cutting tool (13) may then be extended and opened out to deburr the edge of the hole situated on the hidden face of the part. The cutting tool pivots freely in order to adopt the correct angle for the edge to be deburred.

Abstract: A deburring tool for deburring the edges of boreholes. The tool has a base body in which at least one recess aligned across the longitudinal axis of the base body is provided, where at least one blade is arranged in said recess so it can be displaced under spring load in the longitudinal direction of the recess. A compression spring is provided in the longitudinal bore of the base body and comes in contact with one end of a control pin whose other end engages in a control recess in the blade to provide at least a holding power to the blade in the direction of displacement.

Abstract: A pressure controlled cutter bit or drill bit retainer in the form of a revolving drill head with hydraulic precision adjustment of the drill bit arranged at a central extension, which is displaceable from its original position by small amounts around a pivot axis by a pressure motor, wherein this displacement occurs without any parts mechanically rubbing against each other and the dimensioning of the pressure motor and extension defining the transmission ratio conditions are selected in such a way that the travel of the drill bit guided along a curved path is greater than the travel of the pressure motor output produced by volume change, and wherein the overall volume of the pressure motor is selected to be slightly greater than the volume required for moving the pressure motor output.

Abstract: Burrs formed at the ends of a bore during a honing operation performed by a single pass honing tool are removed by a deburring attachment which is carried on the leading end of the tool. The attachment includes one set of spring-loaded blades which remove burrs at one end of the bore as the tool is retracted from the bore and further includes an axially spaced set of spring-loaded blades which remove burrs at the opposite end of the bore during retraction of the tool.

Abstract: The tool for machining bore transitions includes a holder drivable rotatably through at least one rotation, and drivable in an advance stroke and in a return stroke; and a spring wire having at least two resilient arms with overlapping movable free end, the spring wire being bent into a hairpin shape so as to have a stem or bent end portion structured to be inserted and held in the holder and a cutting medium provided on the free ends of the resilient arms for machining the bore transitions. The holder can advantageously be provided with a slot for the stem, threaded bolts which engage between the resilient arms of the spring wire and a spring which spring-loads the side of the spring wire inserted in the slot.

Abstract: An adjustably expandable fluted tap to reform damaged threads defined in a blind hole, such as a spark plug hole. The tool provides an elongate body with a first end defining an expandable fluted tap having a relaxed diameter smaller than but matingly similar to the threads to be repaired, and a second end defining a butterfly handle. The body defines a medial channel carrying an arbor with a first end having a tapered forcing cone for expanding the fluted tap, and a second end threadedly engaged in a round knurled nut carried externally of the second end of the body. The tap is inserted in a hole beyond the damaged threads, the knurled nut tightened to retract the forcing cone to expand the fluted tap into mating engagement with the undamaged threads and the tool is then screwed out of the hole by revolving the butterfly handle to reform the damaged threads as it is withdrawn therepast.

Abstract: A deburring tool including an elongated arbor having a replaceable unitary cutting tool and an assembly holder adapted to removably receive and mount the arbor. The arbor includes a head portion disposed at one end of the arbor and a slot defining a pair of opposed surfaces disposed in spaced parallel relationship with respect to one another and extending from the head portion to the distal end of the arbor opposite the head portion. The tool includes a replaceable unitary cutting tool which is removably mounted between the opposed surfaces defined by the slot in the arbor.

Abstract: A throw-away tipped drill has an insert removably connected to a shank for cutting a workpiece. The insert (31) and the shank (32) have mutually engaging surfaces respectively, and a slit (34, 39) is formed either in the insert (31) or in the shank (32) for mounting the insert to the shank, whereby the insert (31) is fixed to the shank (32) by an elastic force which is caused by an elastic deformation upon mutual movement of opposite surfaces of this slit (34, 39) in engagement of the insert (31) and the shank (32). Therefore, the insert (31) and the shank (32) are coupled by simple press fitting without any requirement for a screw or other connection, whereby the assembly is improved.

Abstract: A deburring tool has at least one cutting blade mounted in a guide recess of the tool for deburring and chamfering bores. The blade is of rectangular shape with forward, non-cutting end face and longitudinal side faces extending rearwardly from the end face. At least one side face has a non-cutting glide surface extending rearwardly from the end face at a first angle, and a cutting edge extending rearwardly from the glide surface at a second, different angle.

Abstract: Safe and structurally simple design for a finebore machine with a turning tool (3) mounted on a boring bar (2), whereby the excursion of the turning tool is produced by a piezoelectric servomotor without any magnetic actuation. This is achieved in the following manner: (a) the turning tool (3) is lodged in a spring-mounted tool holder (4) which is made to deflect by a translatory driving servomotor (6); (b) the driving direction of the servomotor (6) is perpendicular to the operating direction of the turning tool (3); (c) the driving strength of the servomotor (6) acts on the one end of a connecting rod (8) which is lodged separately from the servomotor (6); (d) the other end of the connecting rod (8) abuts on the free mobile end of the tool holder (4) in a fixed position relative to the latter. The shape of the bore to be produced can be preset as an electronic image.

Abstract: A chamfering tool and method for use in the precision backchamfering of a rotating part. The chamfering tool has a cutting head portion selected to match the size of the surface to be chamfered. Behind the cutting head is a shank portion of reduced diameter which connects the cutting head portion to an enlarged portion which supports the chamfering tool in a fixed tool holder. If the part centerline is not aligned with the rotating collet centerline, the part center traces a circular orbit. The shank portion of reduced diameter enables the tool to flex so that the cutting head can follow the part centerline being guided by the part's inner diameter.

Abstract: An apparatus for supporting a machining tool on a robot arm is disclosed having first and second support members with the second support member attached to the first support member by torsion bar elements so as to be movable with respect to the first member about an axis in a single degree of freedom. The first support member is attached to the end of the robot arm and the machining tool is attached to the second support member.The torsion bar element interconnecting the first and second support members has end portions larger than a connecting portion extending between them. One end portion is fixedly attached to one of the support members and the other end portion is fixedly attached to the other support member. The torsion bar elements are generally cylindrical in configuration and are dimensioned such that the diameters of the end portions are between seven and ten times the diameter of the connecting portion.

Abstract: A clamp for circular cutting tools (2) has a bearing bore (6) at the clamp head (5) in order to support a cup-shaped insert (7). The receptacle (9) of the cup-shaped insert (7) is elastically deformable and has a recess configured as a truncated hollow cone and the centering profile (3) of the circular cutting tool (2) is configured as a truncated cone. The convergin cone angle of the recess in receptacle (9) is smaller than the cone angle of the centering profile (3). Several cuts (10) separate the receptacle (9) in spring segments (11). The bottom (12) of the recess has a larger diameter than the contact surface (13) of the circular cutting tool (2). It is provided with a circular groove (14) running along its periphery.

Abstract: Described is a deburring tool with tilt blade for deburring bore edges whereby the tilt blade swings into the tool holder in a vertical direction when travelling through the bore. It features a locking device designed as bar spring which engages in a curvelike recess at the outer periphery of the deburring blade or blade holder, whereby the deburring blade holder are arranged on a tilt bolt on the basic body.

Abstract: A pressure controlled cutter bit or drill bit retainer in the form of a revolving drill head with hydraulic precision adjustment of the drill bit arranged at a central extension, which is displaceable from its original position by small amounts around a pivot axis by a pressure motor, wherein this displacement occurs without any parts mechanically rubbing against each other and the dimensioning of the pressure motor and extension defining the transmission ratio conditions are selected in such a way that the travel of the drill bit guided along a curved path is greater than the travel of the pressure motor output produced by volume change, and wherein the overall volume of the pressure motor is selected to be slightly greater than the volume required for moving the pressure motor output.

Abstract: The tool holder, which serves principally for receiving a thread cutting tool, has a length compensation under tension and compression. This purpose is served by two compression springs which comprise massive elements of foamed, open and closed cell polyurethane elastomer. This material has good spring and damping properties. The compression springs operate without fatigue. The tool holder also has a coupling which permits radial movements of the thread cutting tool transverse to the axis of rotation in order to compensate for alignment errors.

Abstract: An adjustable tool holder for cutting tools in boring machines having an internal drawbar includes a housing pivotally connected to a rotary spindle and a forwardly disposed cutting tool. A wedged camming surface is positioned forwardly on the drawbar for contact against an internal drive lever axially disposed for pivotal contact against the housing. Upon actuation of the drawbar the housing is stressed to a canted position causing pivotal adjustment of the cutting tool.

Abstract: A drilling and chiseling tool bit includes a tool bit head, an axially extending shank and an insertion end for insertion into a drilling or chiseling device. The shank extends between the tool bit head and the insertion end and is divided into individual axially aligned members. The individual shank members are held together by a retaining member which also interconnects the tool bit head and the insertion end. The tool bit head and insertion end are rotatable as a unit and are movable axially relative to one another. By dividing the shank axially, its individual members have a higher natural frequency and afford improved transmission of impact energy. As a result, preventing the excitation of natural vibrations in individual shank members, the vibration period is shorter compared to the impact transmission time period. Accordingly, the sound radiation from the tool bit is reduced.

Abstract: A cutter for the deburring of bores comprises a rectangular edged cutter element having taperingly extending cutting edges, having clearance surfaces ground undercut and comprising a convexly ground contact surface on one end of the cutter head for contact with the internal surface of a bore. Two oppositely aligned cutter elements are mounted for displacement in a radial direction in a guide recess of a tool holder, and while in the operative position during the deburring of a bore, the cutting elements are displaced inwards radially because of the tool holder feed and because of the tapered extension of the cutting edges, against a spring force in the guide recess, until they finally reach the inner area of the bore in the non-cutting mode.

Abstract: A deburring drill bit having a shank, an elongated shaft, a drill bit head having forward drilling surfaces formed in the head, and rearward deburring surfaces formed behind said forward drilling surfaces, whereby drilling and deburring can be performed in a single operation, the drilling surfaces having a first longitudinal axis and the deburring surfaces having a second longitudinal axis not coincident with said first longitudinal axis.

Abstract: A power tool combination including a hammer drill, an adapter secured to the drill for attaching it to an elongated rod which bears on the floor, a pneumatic cylinder and piston unit mounted between the elongated rod and the drill for applying an uniform external force for moving the power drill into the ceiling, and a coupling member between the pneumatic piston and cylinder unit. The coupling member is rigid for transmitting axial forces therethrough under normal operating conditions but is capable of yielding to absorb abrupt shock forces in the event that the drill encounters an undesirable obstruction in the ceiling, the coupling member including structure for causing it to return to a normal rigid condition after the shock forces have been absorbed.

Abstract: A tool holder for a numerically controlled machine tool, in which a cutting edge provided on a base member is adjustable with respect to a reference surface on the base member by adjustment means. The adjustment means comprise a U-shaped slot in the base member. This slot serves to form a pair of lever portions in the material of the base member, which lever portions are connected to each other by an area of the base member serving as a pivot. An adjustment screw threadingly engaging the base member acts upon the free end of one of said lever portions such that upon an adjusting movement of the adjustment screw the first lever portion is deflected in a predetermined direction to thereby deflect the second lever portion of the opposite direction. The second lever portion transmits its movement to the cutting edge by means of a spacing member disposed in the slot (FIG. 1).

Abstract: Boring device which permits the taking of dimensions with precise tolerance, characterized in that it is designed with and comprises means which permit the taking of dimensions by deformation of the neutral longitudinal axis of the tool carrier axis, which means assure a controllable and modulatable force of a part of the tool carrier axis contained between two supports.

Abstract: Disclosed is a device for use in reshaping the gate of a metal mould for plastic injection moulding. A device A for reshaping the gate recess 7 of a metal injection mould 3 for plastics injection moulding when the recess has become worn comprises a cylinder 9 containing a body 10 which is biased by a spring 15. A cutting tool 13, 13a is mounted on the front of the body 10 and is shaped to re-cut the recess 7 to the required shape. A pin 14 on the tool 13 fits in the gate 6 to centralize the tool 13. A plate 17 with a recess 16 to receive the tip of an injection nozzle 5 is rotatably mounted on the rear end of the cylinder 9 and holds the rear of the device A centered. In operation the cylinder 9 is rotated manually and turns the body 10 and the tool 13 with it owing to the keyway 11 and screw 12 forming a key.

Abstract: This invention relates to a tool support, particularly for a robot, of the type comprising two parts connected together by an assembly of elastic plates which, at rest, are disposed tangentially to a circle concentric to a reference axis of said robot with which the axis of the tool merges, and which, when working, enable that part of said support which bears the tool to move with respect to said reference axis, wherein each of said plates is connected to one of said parts of the tool support via a swivel joint assembly or the like and to the other of said parts via an articulation whose axis is at right angles to said reference axis. The invention is more particularly applicable to automatic machining with displacement of the tool parallel to itself.

Abstract: A hand tapping device has a driving rod at one end provided with a handle and a chuck at the other end for holding a tap. A housing located between the rod and chuck is attached at one end to the rod for axial movement and at the other end to the chuck. A sleeve attached to the rod provides a guide for axial movement of the housing in response to rotation of the rod to effect cutting threads by the tap as the housing expands from the rod and sleeve with a progressively reducing force exerted by a spring located within the housing. At the same time, a graduated scale on the outer surface of the housing indicates the distance the housing moves outwardly from the sleeve and the corresponding depth of the tapped threads.

Abstract: A machine tool of the type wherein a non-rotating cutting tool cuts a workpiece which rotates about a longitudinal axis of rotation. The machine tool includes a block member having the cutting tool attached thereto, the block member being coupled to a housing for radial movement of the block member and cutting tool in response to axial movement of a roller screw spindle internal of the housing.

Abstract: A device for boring holes has a geometrical longitudinal axis, a clamping zone, a shank having a front end zone, two turnover plates fastened on the front end zone of the shank in opposite positions, and a chip space in front of each turnover plate. In the shank, a longitudinal slot runs radially to the geometrical longitudinal axis, which is open towards the front end zone and has a bottom that extends so far towards the clamping zone that the shank halves thus formed can be bent forward at the front end zone to a degree that is sufficient for fine setting the bore diameter. Beyond the bottom of the longitudinal slot, a tapped hole in the shank is coaxial with the longitudinal axis. A coaxial rest hole in the shank in the inner zone of the longitudinal slot is intersected by the longiudinal slot.

Abstract: The boring and milling head (11) is designed to receive a boring and mill tool (91) provided with a clamping device (55) having a hollow clamping cone (57) and a conical clamping wedge (61), the device being connected in order to resist torsion, to a drive element (21) which may be coupled with a rotary driven boring bar or with another similar mounting. In order to perform a boring and milling in a single operation with the overmentioned boring and milling head (11), without having to change the tool and/or the position of the boring bar or of the work piece, the longitudinal axis of the clamping device (55) containing the boring and milling tool (91) may pivot with respect to the rotation axis (88) of the drive element (21).

Abstract: A deburring tool for deburring the irregular or out-of-round edge of holes drilled in a workpiece having a shank with a self-piloting head and a blade associated with that head, a mechanism for permitting the blade to move axially within limits of movement relative to the shank and a drive element and a mechanism for biasing the blade toward a workpiece. Further, a mechanism is provided for adjusting the bias of the biasing mechanism to vary the bias in accordance with the characteristics of the material to be deburred.