Abstract: A disclosed image formation apparatus includes: an operation unit allowing input of reading conditions of image data; an input unit reading the image data in accordance with the reading conditions input via the operation unit; a first storage unit storing the image data read by the input unit; a second storage unit storing correspondence relation between the reading conditions and predicted data amount of the image data to be stored in the first storage unit; a data amount prediction unit predicting data amount of the image data to be read based on the reading conditions and the correspondence relation stored in the second storage unit; and a judgment unit judging whether to perform reading of the image data based on the predicted data amount and an available capacity of the first storage unit.

Abstract: A photoconductor charging system for use with an image forming device. The image forming device may include a plurality of image forming units transferring toner particles to a media substrate and each of the plurality of image forming units including a photoconductive unit and a corresponding charging unit positioned to charge the photoconductive unit. Generally, an alternating current power supply may be coupled to one or more of the charging units and supply a voltage thereto. The alternating current power supply may include a switching mode amplifier. In one embodiment, the switching mode amplifier is a class D amplifier. The charging system may further include a filter to filter an output of the switching mode amplifier. The filter may include a low pass L-C filter. The switching mode amplifier may operate a transistor output bridge between on and off states to improve amplifier efficiency.

Abstract: An image-forming device includes a casing, a driving roller, a conveying belt, a photosensitive unit, a fixing unit, a reading unit, a fan, and a first partition wall. The casing has a wall formed with an air inlet port and defines an inner space. The air inlet port has a top end portion and a bottom end portion. The photosensitive unit is configured to form a predetermined pattern on the conveying belt. The fixing unit has a top edge portion and a bottom edge portion. The reading unit is provided adjacent to the driving roller and is capable of reading a predetermined pattern formed on the conveying belt. The fan is provided on an upper section of the inner space. The fan discharges air inside the casing to outside thereof. The first partition wall is located in the upper section of the inner space. The fan is provided in one side of the first partition wall and the fixing unit in another side thereof. The first partition wall has a bottom end.

Abstract: An image forming apparatus includes: an apparatus main body; a sheet feeding cassette attached to the apparatus main body so as to be pulled out to an outside; a cover that covers, with an internal space in between, a portion of the apparatus main body different from a portion where the sheet feeding cassette is attached; a handle portion formed on a front face side in a pull-out direction of the sheet feeding cassette so as to open for enabling a user to insert a fingertip therein; an air channel formed in the sheet cassette and allowing an opening of the handle portion and the internal space inside the cover to communicate with each other; and an air blower that sends outside air inside the apparatus main body by way of the opening, the air channel, and the internal space.

Abstract: An image forming apparatus capable of suppressing drop in the write positional accuracy of the optical write while improving the maintenancability of the photosensitive bodies and the peripheral devices thereof, having a printer comprising four processing units each holding, in the inner part thereof, a photosensitive body for supporting a latent image on an endless moving surface, an optical write unit that is movable between an operate position where a write operation is performed for writing latent images on the surface of each of these photosensitive bodies and a retreat position where this write operation is not performed, and a support body for supporting each of the photosensitive bodies of the processing units and the optical write unit, the support body being configured as an integrally molded part by being united at the location for supporting each of the photosensitive bodies of the processing units and the location for supporting the optical write unit from (front-side panel and rear-side panel).

Abstract: An apparatus for housing an electronic circuit in a remanufactured replaceable consumable unit having unique characteristics that facilitate the removal of the casing after it has been mounted onto the replaceable consumable unit, once the replaceable consumable unit is later refurbished, the characteristics including various physical dimensional variations of the walls of the casing, the physical dimensional variations being either an indentation, a protrusion, or a removal fixture integrated into the design of the casing, the casing further designed to fit within a specific mounting location on the replaceable consumable unit.

Abstract: In a constitution for detecting a position of a transfer member on the basis of a detection result of a current passing between the transfer member and an image bearing member, the positional detection is performed after a contacting and separating operation of the transfer member is carried out. By the contacting and separating operation of the transfer member, the image bearing member located out of a normal position is pressed to the normal position by the transfer member. After the image bearing member is pressed to the normal position, a position of the transfer member is detected.

Abstract: A magnetic latch for removably latching a first member to a second member includes a magnet emitting a magnetic field carried by the first member and a magnetically attractive catch plate carried by the second member. A release mechanism is provided for moving the magnet relative to the catch plate from a first position in which the catch plate is strongly engaged with the magnetic field to a second position in which the catch plate is weakly engaged with the magnetic field. The release mechanism includes a lever, pivotally mounted to one of the first and second members and a biasing member carried by the other of the first and second members, the lever engaging the biasing member during pivoting of the lever. The release mechanism enables the magnetic engagement of the members to be broken with a relatively small applied force.

Abstract: A charging apparatus for charging a member to be charged by contacting magnetic particles to the member to be charged, includes a magnetic particle carrying member for magnetically carrying the magnetic particles, wherein the magnetic particle carrying member is provided at a longitudinal end portion of the magnetic particle carrying member with an insulative portion for electrically insulating from the magnetic particles carried by the magnetic particle carrying member; and an electroconductive member disposed for contacting the magnetic particles carried on the insulative portion, wherein an absolute value of a potential of the electroconductive member is lower than an absolute value of a voltage applied to the magnetic particle carrying member.

Abstract: A light source device includes: a semiconductor laser; a coupling lens; a holder; and a photopolymerizable resin. The coupling lens converts laser light from the semiconductor laser to a light flux, the coupling lens having a first side and a second side opposite to the first side, the coupling lens having an outer peripheral surface connecting the first side and the second side. The holder holds the semiconductor laser and the coupling lens in a manner that the first side of the coupling lens confronts the semiconductor laser. A part of the photopolymerizable resin is provided between the outer peripheral surface of the coupling lens and the holder and another remaining part of the photopolymerizable resin protrudes from between the outer peripheral surface of the coupling lens and the holder in a direction defined from the first side to the second side, the photopolymerizable resin being cured to fix the coupling lens on the holder.

Abstract: A developer agitator of an image forming device capable of improving the electrification rate of a developer is disclosed. The developer agitator includes a rotatable shaft and an agitating wing disposed on the circumferential surface of the shaft. The agitating wing has an uneven part formed to increase the contact area with a developer. The developer agitator can obtain an electrification rate of the developer required for high speed printing, thereby allowing the image forming device to be operated at a high speed.

Abstract: There is provided a developing device including: a casing; a developing roller held by the casing and carrying a developing agent; and a layer-thickness regulating blade for regulating a layer thickness of the developing agent carried on the developing roller, in which in the state where the developing roller is held by the casing, the tip end portion of the layer-thickness regulating blade abuts against the developing roller at a uniform pressure in the axial direction of the developing roller, and in the state where the developing roller is not held by the casing, the layer-thickness regulating blade is bent toward a disposed position of the developing roller.

Abstract: In one embodiment, the invention provides a paper separation claw disposed near the surface of at least one of fixing rollers that fix toner on recording paper transported in a sandwiched manner, the paper separation claw being disposed in order to separate the recording paper, and a cavity portion that is open facing the surface of the fixing roller is formed in the paper separation claw.

Abstract: The image heating apparatus includes a rotary member that comes into contact with a toner image borne on a recording material, a backup member that forms a nip portion to pinch and convey the recording material with said rotary member, wherein said rotary member heats the toner image on the recording material in the nip portion, a cover member that covers a surface of said rotary member with a gap between the surface of said rotary member and the cover member and a frame that accommodates said rotary member, said backup member and said cover, wherein said cover is not in contact with said frame. This structure can suppress heat dissipation to the exterior of the image heating apparatus, thus suppressing the energy consumption.

Abstract: A method of forming an image comprising: (a) developing an electrostatic latent image formed on an electrophotographic photoreceptor with an electrophotographic toner so as to obtain a toner image; (b) transferring the toner image on the electrophotographic photoreceptor to a recording paper; and (c) fixing the transferred toner image with a fixing device comprising a belt fixing member having an endless belt, wherein the electrophotographic toner comprises a polymer having a glass transition point of 20 to 40° C.; an interfacial adhesion force (Fr) between the electrophotographic toner and poly(tetrafluoroethylene) is 1 to 3.5 N; and the fixing device comprises a heating roller which is provided at a position apart from a fixing nip area.

Abstract: An image forming apparatus having a transfer assist mechanism is disclosed. The transfer assist mechanism includes a first blade holder having a first blade, second blade holders having corresponding second blades, and a first slide engaging member and a second slide engaging member which engage the first and second blade holders. When the first slide engaging member and the second slide engaging member are moved corresponding to the width of a continuous recording medium, the first blade holder and some of the second blade holders are selected corresponding to the width of the continuous recording medium, and the first blade and some of the second blades corresponding to the selected some of the second blade holders press the continuous recording medium.

Abstract: A shutter is rotatably supported by a first powder guiding member. When the first powder guiding member and a second powder guiding member occupy powder guiding positions, the shutter takes an open position. At this moment, a rear end of an upper surface of an open/close plate of the shutter is positioned on an inner side of an upper opening of the second powder guiding member.

Abstract: A medium transport device includes a transport unit for transporting a medium, and a guide member disposed on a downstream side of the transport unit in a direction that the medium is transported. The guide member includes a first portion corresponding to the transport unit and a second portion having a shape different from that of the first portion.

Abstract: An antenna 33 is located downstream of a tape transferring direction of a tape discharging port 27 through which a printed label tape 28 of a tape cassette 21 mounted to a cassette housing part 8 is discharged. A reflective sensor 35 that detects a sensor marks 65 provided on the back surface of the printed label tape 28 is arranged at the opposite side of the antenna 33 interposing the printed label tape 28. At the upstream of the antenna 33 and the reflective sensor 35 in the tape transferring direction, a cutter unit 30 for cutting the printed label tape 28 discharged through the tape discharging port 27 of the tape cassette 21 at a predetermined interval is arranged.

Abstract: A cable label having a desired configuration is provided without forcing a user to do any troublesome work. A character string to be printed on a cable label is memorized in a character string memory section. A print image generating section generates a character string memorized in the character string memory section. A designation and its outside diameter value, for example, of each of plural cables are memorized in a cable information memory section. A label length determining section determines the length of a cable label based on the outside diameter value of a selected cable. A print image arranging section arranges a print image generated by the print image generating section within a length determined by a label length determining section.

Abstract: A safety mechanism includes multiple positioning recesses defined in a bottom face of the head of the adjusting sleeve, a stop received in one of the positioning recesses, a slot defined in a top face of the body, an urging spring received in the slot, and a urging ball partially received in the slot and urged by the urging spring. Therefore, rotation of the adjusting sleeve relative to the body is limited due to engagement between the urging ball and the stop which is received in one of the positioning recesses and separation between the adjusting sleeve and the body is avoided.

Abstract: A handheld pattern creating device and method of use of the same are disclosed. In one embodiment, a rotational member is rotatably positioned within a housing under the power of a first drive mechanism to angularly traverse an x-y plane. A rail track is disposed on the surface of the rotational member in order to provide a radial path for a carriage that houses a tool tip. A guide track disposed on a surface of the rotational member includes a curved portion that provides a non-linear path. A second drive mechanism drives the carriage transversely along the radial path of the rail track such that a flexible rack gear travels the non-linear path of the guide track.

Abstract: This invention relates to a printing apparatus and a conveyance control method capable of simultaneously operating plural encoder sensors and executing more accurate printing medium conveyance control. A first encoder sensor provided adjacent to a first conveyance roller detects the conveyance amount of a printing medium by the first conveyance roller provided in the conveyance path of the printing medium. A second encoder sensor provided adjacent to a second conveyance roller detects the conveyance amount of the printing medium by the second conveyance roller provided in the conveyance path of the printing medium at the downstream side from the first conveyance roller in the conveyance direction of the printing medium. For example, conveyance of the printing medium is controlled on the basis of the output signals from the first and second encoder sensors when a tail end of the printing medium is located adjacent to the first conveyance roller.

Abstract: This invention relates to a printing apparatus and a conveyance control method capable of allowing even an arrangement having a plurality of conveyance rollers in a printing medium conveyance path to accurately control conveyance of a printing medium. According to this invention, a first encoder detects a conveyance amount by a first conveyance roller, provided in a conveyance path, for conveying a printing medium. A second encoder detects a conveyance amount by a second conveyance roller provided in the conveyance path in the conveyance direction of the printing medium at the downstream side of the first conveyance roller for conveying the printing medium. On the other hand, a signal output from the first or second encoder is selected on the basis of the position of the printing medium on the conveyance path. Conveyance of the printing medium is controlled on the basis of the selected output signal.

Abstract: The invention relates to a system for printing labels, especially labels of textile products, with at least one printing unit that includes at least one print head, one non-motorized printing roller, whereof the print head and/or the printing roller are mutually movable in a reversible manner, and at least one cleaning unit. Furthermore it is given that the cleaning unit is constituted by a non-motorized cleaning roller which can be replaced with the printing roller.

Abstract: An apparatus and a system is provided that prevents the inadvertent striking of a computer keyboard key by a user's finger. The present invention may be utilized in either Original Equipment fashion or may be retrofitted to an existing computer keyboard to provide the user with an efficient deterrent system to accidental striking of a computer key. The apparatus is a removably attachable device comprising a solid one piece shaped device configured in either a ‘T’ configuration and/or an “L” configuration whereby the device has a vertical member attached to a horizontal member wherein the vertical member is configured to fit between the keys and facilitating a deterrent to the typist in inadvertently striking a blocked key.

Abstract: A package including a product chamber to which a consumer product composition is in contact, and a substantially non-moveable outer sleeve surrounding at least a portion of the product chamber. The outer sleeve has a body portion and a separate and distinct base portion. And at least one of the body portion and the base portion is permanently connected to the product chamber.

Abstract: A stick cosmetic advancing container has a stick type cosmetic, an interior plate, a tubular sleeve having an application opening at its tip portion from which the stick type cosmetic is advanced, and a moving mechanism for moving the interior plate within the sleeve. A user holds the stick cosmetic advancing container to apply the stick type cosmetic. The sleeve is arranged to have a uniform internal cross-sectional shape throughout the moving range of the stick type cosmetic. Further, the surface of the application opening is inclined at an angle of ?1 with respect to the central axis A of the sleeve. Also, an outer side wall thickness W1 of an outer side wall portion 18 is arranged to be less than an inner side wall thickness W2 of an inner side wall portion 19.

Abstract: An apparatus for dispensing liquified material includes a hollow storage body for holding a supply of liquified material within a flexible, collapsible bag located within the hollow storage body. A power supply head is connected to the bottom end of the hollow storage body. A liquified material supply head is connected to the top end of the storage body and has a liquified material passageway. An externally powered source is placed in communication with the power supply head to provide a compressive force on the bag holding the liquified material. The force is selectively applied to the bag so that liquified material is forced out of the bag in the hollow storage body through the liquified material passageway in the liquified material supply head.

Abstract: A ring binder mechanism for retaining loose leaf pages. The mechanism includes an elongate plate. Hinge plates are supported by the plate for pivoting relative to the elongate plate. Rings for holding loose leaf pages include ring members mounted on the hinge plates and moveable between a closed position and an open position. A lever is pivotally mounted on the elongate plate for moving the ring members between the closed and open positions. A travel bar is moveable in translation lengthwise of the elongate plate. A connector is pivotally connected to the lever and travel bar such that the pivoting motion of the lever produces translational movement of the travel bar lengthwise of the elongate plate.

Abstract: The present invention discloses a joint structure between the wall elements of a light-weight magnetically shielded room. In the joint structure, the end of the aluminum plate of the element is stepped and its surface roughened. In addition to this, the aluminum plate is coated, for example, with tin to improve the electrical contact. The joint includes ? metal plates which are used to make a magnetic contact between the ? metal plates of the elements. The compression force achieved by means of bolts is transmitted to the joint by means of an aluminum moulding. The non-continuous compression force is balanced over the entire joint area by using presser rubbers. The joint structure is protected by means of supporting profiles which are used to electrically couple the thinner aluminum plate of the sandwich type wall element to the thinner aluminum plate of an adjacent element. The thinner aluminum plate and the supporting profile can also be coated, for example, with tin to improve the contact.

Abstract: A connection element 2, 3 for attaching a horizontal element 7, 8 to a vertical element is proposed. In this arrangement, a free end of the horizontal element 7, 8 comprises at least one top projection 18 and at least one bottom projection 17; and on the vertical element 56 at least one hooking-in aperture 20 for accommodating the top projection 18 of the horizontal element 7, 8 and at least one horizontal projection 25 for the vertical support of the bottom projection 17 of the horizontal element 7, 8 are provided, wherein a clamping element 30 with locking means 32 is provided for horizontal securing of the bottom projection 17 of the horizontal element 7, 8.

Abstract: An energy absorbing system with one or more energy absorbing assemblies is provided to reduce or eliminate severity of a collision between a moving vehicle and a roadside hazard. The energy absorbing system may be installed adjacent various roadside hazards or may be installed on highway service equipment. One end of the system may face oncoming traffic. A collision by a motor vehicle with a sled assembly may result in shredding or rupturing of portions of an energy absorbing element to dissipate energy from the vehicle collision.

Abstract: A lightweight manhole cover assembly includes a cover and a base, with the cover including an inner surface having a plurality of ribs extending therefrom. The base includes an inner surface having a plurality of receptacles extending therefrom. The receptacles of the base have a layout that corresponds to the ribs of the cover, such that the ribs are adapted to be inserted into the receptacles.

Abstract: Compounds are provided which act as flexible binding or cementing compounds. These compounds comprise a substituted or unsubstituted polyvinyl alcohol, a hydrogen-bonding crosslinking agent and a water storage component. Additionally, methods for making and using these compounds are provided.

Abstract: The orbital vibrating hand trowel has a body with first and second opposite ends and a handle between the ends for grasping. The body houses a motor and power source. An eccentric mass is connected to the motor. An adapter body is connected to a float body. The adapter body has an aperture for housing the eccentric mass such that rotation of the eccentric mass within the aperture of the adaptor body moves and vibrates the adaptor body and attached float body in an orbital path along a horizontal plane with respect to the float body for finishing a surface.

Abstract: The patent describes a device intended to both attenuate water waves efficiently, and efficiently convert the attenuated energy to useful energy, while having minimal negative environmental impact. The device consists of a flexible slab that rests upon a rigid but permeable horizontal plane between surface and bottom. The slab is alternatively pushed away from the plane, and alternatively it is pressing hard on the plane. The resulting force may be converted to hydraulic energy using established technology. The critical parameters are the submerged weight per area and elasticity of the slab, equations for which are given in the patent.

Abstract: A drain cover and pipe combination comprises a drain cover including a substantially elliptical frame portion defining a space, the space having an axis substantially normal to the frame, and at least one cross piece located in the space so as to define a plurality of openings in the drain cover. The pipe comprises a substantially tubular member having a longitudinal axis, with the pipe having a substantially elliptical shaped rim at one end thereof with a rim axis which is other than parallel to the longitudinal axis of the tubular member. Securing means are provided for securing the drain cover over the rim of the pipe.

Abstract: A circulation system in which a drilling fluid flows from the surface, through a pipe, through a motor and a drill bit, and returns to the surface through the annular area between the outside diameter of the pipe and the internal diameter of the hole being drilled, to urge the drilling system forward by providing a seal which engages the internal diameter of the hole being drilled, providing a booster pump to pump the drilling fluids between the seal and the outer diameter of the drilling system such that the pressure downstream of the booster pump is higher than the pressure upstream of the booster pump by a differential pressure giving a force generally proportionate to the area within the diameter of the sealing engagement with the internal diameter of the bore times the differential pressure to urge the drilling system forward.

Abstract: The present invention discloses a vortex induced vibration inhibitor (“VIVI”) comprising a hollow cylindrical housing having an elongated opening defined by locking edges. The housing is operable between an open and a closed position. Connecting assemblies include barbed connector pins received in grooved housings. Connector slots are provided in the connector and receptor housings. Retainer pins provide for release of connecting assemblies. Spacers are provided to limit movement of the housing in relation to the surrounded structure. An alignment stub is provided.

Abstract: The aim of this invention is to present a method in which holes (1) are drilled into the ground for the injection of highly expansive grouts (5), so that the subsoil is void filled and compacted and thus the liquefaction potential under earthquake and vibration forces are reduced.

Abstract: A panel pushing assembly (10) for a slide rail system having a first and second wall (12, 14) includes an elongated member (16) having a bottom end (18) and a top end (20), and a guide (40) disposed about the elongated member (16). The guide (40) guides slidable movement along the elongated member (16) and includes a collar (42) engaging the walls (12, 14) of the elongated member (16) and a catch (44) extending laterally from the collar (42) to engage the second wall (14), which is the stationary wall. The collar (42) includes a plurality of side-plates (46) and the catch (44) includes a hook portion (70) extending downwardly along the outside of the second wall (14) for preventing lateral movement of said elongated member (16) relative to the second wall (14).

Abstract: In a method for cutting freeform surfaces, a workpiece is cut by a cutting tool such that a desired freeform surface may be achieved, the cutting tool for cutting purposes being moved along at least one defined cutting path relative to the workpiece. A cutting tool is used, the tool head of which has a greater radius than a tool shank of the cutting tool.

Abstract: A cutterhead for shaping materials. The cutterhead includes a substantially cylindrical body with at least one helically-shaped recess defining a helically-shaped projecting surface having a cutting side and multiple seats positioned along the projecting surface. The seats receive removable cutting blades and include a planar seat surface. The seat surfaces are oriented to appropriately align the projecting blade edge of the blade to a helical angle. In addition, the seats include a connection arrangement for removably attaching the blade.

Abstract: The present invention relates to cutting insert for milling of hardened steels, tool steels and hard cast irons and stainless steels with a hardness of more than about 45 HRC comprising a substrate and a coating. The substrate has a hardness of from about 1700 HV3 to about 2000 HV3, with a 10° angle and 0.2 mm wide negative chamfer giving an edge sharpness of 0(sharp) to about 40 ?m and the coating comprises a homogeneous AlxTi1-xN-layer with x=from about 0.6 to about 0.67, preferably x=about 0.62 and a thickness of more than about 1 to less than about 3.8 ?m. The invention also relates to a method of making as well as the use of the inserts.

Abstract: A system and methods for locating and drilling determinate assembly (DA) holes using a coordinate measuring device (CMD) are disclosed. A system includes a CMD having a probe tip, a guide element having a reference hole for receiving the probe tip, and a drill bushing having a drill bit guide hole for accurately drilling a DA hole at a target position. Methods for locating and drilling DA holes comprise steps of: calibrating a CMD; inserting a CMD probe into a reference hole of a guide element; positioning the CMD probe and guide element at a target position on a part; maintaining the guide element at the target position; removing the CMD probe from the guide element; inserting a drill bushing into the reference hole of the guide element; and drilling a DA hole in the part, utilizing a drill bit guide hole located in the drill bushing.

Abstract: A portable drill having an internal combustion engine and a shiftable gear mechanism is provided. The gear mechanism has an output shaft for driving a tool. An input shaft of the gear mechanism is driven by a crankshaft of the internal combustion engine. The gear mechanism is provided with a neutral speed or gear setting in which the output shaft is uncoupled from the input shaft.

Abstract: The present invention relates to an improved hole-saw assembly and in particular, to a mandrel engageable by a drill and including at least one locking ring or annulus that allows for the base of two hole-saws of different diameter to be quickly and easily mountable and demountable from the mandrel. The hole-saw assembly includes a first hole-saw having a base that includes a pair of drive-pins extending outwardly therefrom and a pair of apertures for insertion therethrough of the drive pins of a second hole-saw. The drive pin pairs are then inserted through corresponding apertures in the mandrel to engage an annulus coupled to the mandrel. The present invention provides for each drive pin to be engaged by the annulus despite the difference in longitudinal length of the drive pins beyond the base of the first hole-saw. The hole-saws are snap-fit within the annulus and may be disengaged by simply rotating the annulus to a second position.

Abstract: The invention concerns a wood drill bit (1) with a cylindrical drilling head (2) and a connecting portion (3) adjoining the drilling head (2) in opposite relationship to a drilling direction (b) for connection to a drive means. In this case the drilling head (2) has at its end a centering tip (4) which is disposed on the longitudinal axis (l) of the drill bit and which projects in the drilling direction (b) for centering the wood drill bit (1), at least two main cutters (5) which are arranged diametrically and radially or substantially radially and have main cutting edges (6), and a part-cylindrical guide bell (7) with at least two part-peripheral pre-cutters (24) with pre-cutting edges (25). Adjoining each main cutter (5) is a chip ejection space (8) which is partially open towards the connecting portion (3).

Abstract: The chamfer tool is a deburring tool that can be power driven to debur a bolt or stud that has been cut off with, e.g., a cutting tool or torch. The tool comprises a spherical sectioned cutting head. The tool has a plurality of arcuate triangular cutting formations spaced out over a predetermined number of intervals around the circumference of the tool's cutting head. Preferably, five of the arcuate triangular cutting formations are disposed at approximately 72° intervals. A plurality of slanted L cutting formations are disposed within the spherical section of the cutting head to fill cutting voids created by the spacing of the arcuate triangular cutting formations. With this measure, a deburring tool is provided, which can perform a rounding off process without the occurrence of damaging stud threads.