Abstract: A dust collection hood of an electric hand tool includes a hollow transparent hood body, with a flexible external wall, an end coupled to a hollow socket, a snap portions protruded from an internal wall of the socket and corresponding to a fixing end of the electric hand tool, such that the socket can be snapped to the fixing end of the electric hand tool, and an isolation portion formed at the middle of the hood body and having a through hole formed at the middle of the isolation portion for passing a drill bit of the electric hand tool, and the dust collection hood is provided for collecting dust, while isolating the dust from an actuating end of the electric hand tool, so as to prevent the dust from entering into the actuating end and preventing the dust from flying around in the air.

Abstract: A method of drilling one or more holes, substantially in situ, in a turbomachine casing includes locating piping including at least one vacuum head within the turbomachine casing in proximity to a hole to be drilled; drilling at least one hole in the casing such that drill chips or shavings caused by the drilling are collected in the vacuum head; and applying a vacuum through the piping to the at least one vacuum head to thereby remove the drill chips or shavings collected in the vacuum head to a location outside the turbomachine casing.

Abstract: A tool has a shank and a cutting blade mounted on the shank. The tool also includes an internal fluid passage for drawing in, together with air, chips produced when the cutting blade machines a workpiece. The internal fluid passage comprises a through hole made in the shank, at least one main inlet hole for drawing in the chips together with the air, the main inlet hole being made in the cutting blade and being in fluid communication with the through hole, and at least one sub-inlet hole for drawing in at least the air, the sub-inlet hole being made in the shank and being in fluid communication with the through hole. The chips can efficiently be discharged from the tool without being deposited in the internal fluid passage, by the air which flows at a suitable speed through the internal fluid passage and draws the chips, regardless of the diameter of the tool.

Abstract: A system and method for capturing dust from power tool operation are disclosed. The system comprises a debris-collecting accessory that includes a body and a nose. The nose has an opening for a toolbit and at least one suction port that opens into an interior volume of the housing. The body has a second end configured to couple to a power tool. An exhaust tube attaches to the exterior surface of the body such that an interior volume of the exhaust tube connects to an interior volume of the housing. An exit passage is coupled to the exhaust tube and is configured to couple to a vacuum.

Abstract: A drilling head for a tubular shank having an inside diameter and threads may comprise an axial body comprising a duct exiting through a first end; threads adjacent the first end corresponding to the threads on the shank and aligning the duct with the shank inside diameter; a bore from an outer surface of the body to the duct; and two axially extending approximately parallel and offset surfaces adjacent a second end; and an insert affixed between the offset surfaces, the insert comprising: a first face at least partially contacting one offset surface and a second face at least partially contacting the other offset surface; one or more cutting edges adjacent the first face, the second face, or both; and a cutting lip adjacent one or more cutting edges.

Abstract: A tool is provided for use in at least one of drilling, tapping, back spot facing and counter-boring at least one hole. The tool includes a servo motor cutting device and a gearbox. The servo motor cutting device and gearbox rotate a cutting tool to create the hole. A drill unit skid is adapted to engage a hook fit slot in the case of the dynamoelectric machine and supports the servo motor drill and gearbox.

Abstract: According to the invention, a drilling tool includes: a motor; a transmission drive unit for transmitting a rotation force of the motor to rotate a drill bit; and a dust collector for collecting dust produced from a workpiece drilled by the drill bit, wherein the dust collector is provided with a pierced portion pierced by the drill bit, a dust collection port for sucking the produced dust and its surrounding air, and a blowoff port for blowing air against a vicinity of the piercing drill bit.

Abstract: A retractable dust containment device includes a forward ring, a collapsible cylindrical center portion, a stretchable rear cover, and draw strings. The forward ring is made from or covered by a plastic or soft material to prevent or reduce marring or damage to a work surface. The center portion includes a spring element pushing the forward ring away from the rear cover, and is enclosed by material to contain dust. The rear cover is a rubber like material and includes a window sized to allow a chuck and rotating drill elements to pass through and seat a non-rotating nose of the drill in the window. Draw strings pass through guides on the perimeter of the rear cover, attach to the forward ring, and are joined behind the rear cover, allowing the forward ring to be drawn to the rear to allow clear viewing on the work surface.

Abstract: A core retaining device for use with a core drill bit, which is adapted to cut a core from a material such as concrete. The core retaining device includes a core attachment mechanism for releasably connecting the core retaining device to the core; a bearing connected to the core attachment mechanism allowing the drill bit to rotate while the core attachment mechanism remains statically connected to the core; and a biasing arrangement operably connecting between the drill bit and the core via the bearing, axially biasing the core away from the material preventing the core from slipping from the drill bit. The core retaining device further includes at least one auxiliary safety feature.

Abstract: A robot for machining a part of structure under water, comprising a machine tool having a chamber receiving a machining element, a support and guiding structure of the machine tool fixable with respect to the part to be machined and having submersible mobile elements and corresponding submersible guiding elements defining axes along which the mobile elements are movable to position the machine tool with respect to the part to be machined, displacement units for displacement of the mobile elements along the axes, a gas supply connecting to the machine tool to inject gas in the chamber, and a programmable control unit for operating the displacement units and the machine tool based on a closed-loop control mode in order to achieve the machining of the part.

Abstract: A drill template includes a vacuum housing with a skirt having a CAD-formed contact surface formed to an exact fit with a mold line surface of a structure. The drill template includes at least one drill guide bushing extending through the vacuum housing from a top surface to an interior surface of the vacuum housing; a vacuum port integral to the vacuum housing; and at least one index hole for positioning and aligning the vacuum housing on the structure. Index holes extend from the top surface through to the CAD-formed contact surface of the vacuum housing. A CAD-formed edge of part locator is formed according to a CAD solid model of the aircraft fuselage and fits to a precise location of the structure for precisely positioning the template on the structure. A vacuum port provides vacuum to the interior of the vacuum housing for removing drilling debris and dust.

Abstract: An apparatus for transporting core samples includes an outer tube having an open end and a cover removably mounted to the open end; a core tube slidable into and out of the outer tube when the cover is removed from the outer tube; and a supporting structure between the core tube and the outer tube. The supporting structure supports the core tube within the outer tube with the core tube spaced from contact with an inner wall of the outer tube.

Abstract: A hammer drill is provided with a connector equipped with a female terminal, movably between a connection position where the female terminal is located inside a plug-in port and a non-connection position where the female terminal is in retreat from inside the plug-in port. The hammer drill is also provided with a torsion spring that urges the connector toward the non-connection position. The connector is provided with a shutter portion that is located inside the plug-in port to close the plug-in port at the non-connection position and is in retreat from inside the plug-in port at the connection position. A dust collecting device is provided with a press rail that comes into abutment on the connector to move the connector to the connection position against the urging of the torsion spring as the dust collecting device is mounted.

Abstract: A drill is capable of forcibly aspirating and discharging chips to prevent environmental contamination as well as to simplify cleaning the chips. The drill has an intake hole and an opening formed therein so that the aspiration takes place through the intake hole and the chips generated in the cutting process can forcibly be aspirated from the opening. Because the chips can be discharged without using cutting fluid, the drill is useful for preventing environmental contamination. Moreover, as the chips are forcibly aspirated from the opening and discharged through the intake hole, the chips are not scattered around a workpiece under the cutting process and cleaning the chips can become simple and easy.

Abstract: The invention relates to a system for a hand-held machine tool, particularly a pistol-shaped hand-held machine tool, which includes at least one first auxiliary unit, and a coupling mechanism that is used for coupling the first auxiliary unit and the hand-held machine tool. An example of the invention includes a suction unit as the first auxiliary unit for collecting debris from a hand-held drilling tool. The system also provides for at least one additional auxiliary unit to be coupled to the held-held power tool by the coupling mechanism. An example of the invention includes an illuminating element as an additional auxiliary unit which can be coupled to the tool with the coupling mechanism so as to be interchangeable with the first auxiliary unit.

Abstract: The invention relates to a positioning sleeve for an electrical drill dust collector and an electrical drill dust collector using the positioning sleeve. The positioning sleeve comprises: a sleeve portion coupled with a flange at a front edge of an electrical drill and a support body forward extended from the sleeve portion, surrounding and isolating a rotated portion of the electrical drill to enhance the drill operating safety. The electrical drill dust collector using the aforesaid positioning sleeve comprises: a fixing base fixing on the support body, a telescoping sleeve having a ring body at an front end thereof, a dust collection section at a front end section thereof and a bellows section at a tail end section thereof, and an elastic member having a positioning end connected to the fixing base and a free end thereof connected to the ring body to improve the dustproof effect.

Abstract: A suction cup dust extractor for a drill having a housing with a drill collar attached to the housing and having a drill passage formed through the housing. A recess formed by the walls of the housing has a planar opening and a seal is attached to the walls of the recess which surrounds the planar opening and which, in use, locates against a work piece to create an air tight seal between the housing and the work piece. The housing also has an aperture located thereon through which air can pass; at least one first air passage formed within the housing which enables air to pass from the drill passage to the aperture; and at least one second air passage formed within the housing which enables air to pass from the recess to the aperture; characterized in that the seal comprises a base which is attached to the walls of the recess and a flange which is attached to and extends from the base at an oblique angle to the plane of the opening.

Abstract: An apparatus to remove plugs. In a first embodiment, the apparatus is configured to remove a plug from a hole saw, and in a second embodiment, the apparatus is configured to remove a plug from a hole. The first apparatus includes a pivotable support frame for retaining and stabilizing a cleaning structure. The cleaning structure is arranged to fit within the cylinder of a hole saw and cause engagement with the plug until the plug is split sufficiently to cause its removal from the hole saw. The second apparatus includes a tube and a retractable plug engagement rod retainable in the tube. The tube and plug engagement rod are secured together when the plug engagement rod is extended from the tube. The end of the plug engagement rod is configured to enable its insertion into a plug. The second apparatus is withdrawn, extracting the plug in the process.

Abstract: A debris removal attachment for use with a hand-held power tool. The attachment includes an extension shaft, a first impeller coupled to the extension shaft, and a housing provided adjacent the first impeller. The rotation of the first impeller is configured to generate a pressure differential sufficient to draw debris into the housing.

Abstract: There is provided a drilling tool having a substantially columnar tool body to be rotated around an axial line, a cutting edge located at a front end portion of the tool body, and a chip suction hole which is formed inside the tool body in a direction of the axial line for sucking chips generated by the cutting edge. The chip suction hole has a main hole portion extending toward a drill base along the axial line, a narrow hole portion located at a front end of the main hole portion, the narrow hole portion having a cross section smaller than that of the main hole portion and a suction opening located at a front end of the narrow hole portion and opened in the vicinity of the cutting edge, the suction opening having a cross section larger than that of the narrow hole portion.

Abstract: A machine-tool spindle device includes: a spindle; a front housing for rotatably supporting the spindle; a first drive motor having a first rotor installed securely on the spindle and a first stator installed securely within the front housing; a rear housing installed on a rear end side of the spindle in the front housing; a second drive motor having an annular second rotor which is disposed coaxially to the spindle near a rear end of the spindle and which is supported rotatably within the rear housing, and a second stator installed securely within the rear housing; a connecting mechanism for connecting the rear end of the spindle and the second rotor and releasing the connection; and a clamping mechanism, disposed within the attaching hole of the spindle and within the second rotor, for clamping a tool attached to the spindle.

Abstract: A debris collector for use with a hand or power cutting tool such as an electric drill has a conical body made of a foldable, flexible material. The conical body has an open upper base end and an open lower apex end. An upper support ring is secured to the conical body at the base end and a lower support ring is secured to the conical body spaced from the apex end.

Abstract: A well bore fluid recovery system and method is disclosed for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for preventing fluids from being spilled when casing is being finished for a well bore. After being run the casing must be cut and finished at an appropriate level to install rig equipment such as blow out preventers along with other equipment. However, because of earlier operations, the entire length of casing is typically filled with drilling fluid. Depending on conditions, the length of casing which is to be cut and removed may therefore over a 100-foot (27.4 meter) column of drilling fluid therein. The drilling fluid in this section must be properly drained before the casing is cut and removed.

Abstract: A cutting method capable of efficiently removing cutting chips around a cutting point with a little electric power, and cutting a work with high accuracy with a ball end mill. The ball end mill has a slit shaped-opening part at a portion adjacent to a rake face of a cutting edge in internal communication with a suction passage, and a work in which a cutting liquid is previously coated on an inclined face of the work is cut while the cutting liquid is sucked in the area around the cutting edge from the opening part through the suction passage. As a result of this, the cutting liquid in the area around the cutting edge is sucked from the opening part and a cutting power decreasing rate is higher than in a case where the suction is not carried out.

Abstract: According to the invention, a drilling tool includes: a driving source; a transmission drive unit for transmitting a rotation force of the driving source; and a dust collector for collecting dust produced from a workpiece drilled by the end tool and blowing air against the workpiece, wherein a filtering means for filtering the air mixed with the collected dust and a centrifugal fan for taking in the filtered air and sending out the filtered air in a circumferential direction are provided, the centrifugal fan is disposed in a housing formed with an airflow sending port for sending a part of the air taken in to the dust collector and a discharge port for discharging a rest of the air to an outside, and a distance from the airflow sending port to the discharge port in a forward direction in a direction of rotation of the centrifugal fan is longer than the distance from the airflow sending port to the discharge port.

Abstract: A high speed handheld power drill includes a housing with a motor, a chuck rotationally driven by the motor, and a drill bit clamped in the chuck. A pressure foot is mounted on the housing for coaxial rotation about the drill bit and lockable in a selectable angular position relative to the housing. A drill guide is slidably disposed within the pressure foot at an outer end thereof and biased for coaxial sliding movement between the drill bit and pressure foot. A vacuum cuttings pickup and coolant fluid delivery tool is coupled to the drill guide and arranged to deliver coolant fluid to the drill bit and to remove drill cuttings and coolant fluid and vapor therefrom during drilling. A coolant fluid reservoir is coupled to the drill motor housing and adapted to deliver selectably metered amounts of coolant fluid to the cuttings pickup and coolant delivery tool during drilling.

Abstract: A dust-collecting device adaptive to a power drill comprises a container having atop a tapered portion, the tapered portion including an opening, the container having a through hole at bottom, and a positioning seat being raised around the through hole; a shaft assembly passing through the through hole, the shaft assembly having at least one bearing received in the positioning seat; a spring member being mounted around the shaft assembly; and a spacing member being coupled to one end of the spring member, the spacing member having a round hole for a bit of the power drill to pass therethrough and then pass through the shaft assembly and the opening, whereby, when the power drill drills, drill dust thus generated is guided by a taper of the tapered portion and converged in the container.

Abstract: The invention relates to a device for automatically collecting the debris generated during drilling operations performed using a drilling means, characterised in that said device includes a container made of a deformable material, which comprises: an adhesive means arranged on at least one of the external surfaces of the container, said adhesive means enabling the container to be attached to the substrate to be drilled; a rigid or semi-rigid means extending in the inner space of said container, which includes a transversely aligned projection, the walls of which are made of a material that enables, when drilling the projection, the formation of blades that extend near the through-opening created while drilling; a flexible means, such as filaments, extending under the projection; the blades and the flexible means are arranged such that the free ends thereof engage with the external surface of the through-element of the drilling means when the latter passes through the container coaxially with the projection, t

Abstract: According to a manufacturing method of an optical waveguide substrate including a core (12) and clads (11) (13) and provided with an optical axis conversion mirror (14) in the core and an alignment recess for the optical axis conversion mirror with respect to a light receiving and emitting element, the recess is obtained by obtaining an outline of the core by synthesizing at least an image captured by focusing a microscope (20) to a highest position (14a) of the core in an optical axis conversion mirror portion and an image captured by focusing the microscope to a lowest position (14d), and by determining a position of the alignment recess in reference to a center of gravity of the outline, and according to an optical waveguide substrate obtained by this manufacturing method, it becomes possible to provide an optical waveguide substrate in which the optical axis conversion mirror in the optical waveguide substrate and the light receiving and emitting element are aligned with respect to each other at an extrem

Abstract: Adjustable holding systems, as well as methods of using, may include a fixed base adapted for use on a work surface, the fixed base having a rear actuated clamp assembly secured thereto. Other systems and methods may include one or more bases adapted for use on a work surface; and a guide assembly removably securable to the one or more bases, wherein the guide assembly provides infinite vertical adjustability which can be retained without clamping. Yet other systems and methods may include a portable base securable to a work surface, the portable base having a portable base opening.

Abstract: There is provided a water treatment pad for a drilling tool capable of being fixed quickly and firmly. The present invention provides a water treatment pad for a drilling tool, which is installed on a drilling surface of an object to be drilled when a hole is drilled in the object by using the rotating drill tool while machining water is supplied. The water treatment pad includes a substantially cylindrical pad body having a drain in the side surface thereof and mounted in a manner that surrounds the drilling tool, and a cylindrical diffuser ring detachably fixed in the pad body in a manner that surrounds the drilling tool to accelerate a fluid therein and release the fluid to the outside. On the end surface of the diffuser ring which comes into contact with the drilling surface, convex-shaped blades the transverse cross section of which has an airfoil profile tilting in the rotative direction of the drilling tool are arranged in an aligned manner.

Abstract: A tap is designed so that the pollution of the environment can be prevented and the cleaning can be simplified. The tap includes an intake hole having openings at a screw portion of the tap. Air intake is performed through the intake hole, so that the chips generated by the screw portion in the cutting can be aspirated from the openings forcibly. Because the chips can be discharged without using cutting fluids, pollution of the environment can be prevented. Because the chips can be aspirated from the openings and discharged from the intake hole of the tap, the chips are not scattered on the work piece, and thus a cleaning process of the work piece can be simplified.

Abstract: It is an object of the invention to provide a technique which contributes to improvement of operability in a dust collecting device which is used with a power tool for performing an operation using an internal dust suction type bit and collects dust generated by operation. A dust collecting device 210 is used with a power tool having a tool bit 119 configured as an internal dust suction type bit and includes a dust collecting device body 211 which is mounted to the tool body 103, and a dust collecting part 261 which covers the tool bit 119. The dust collecting part 261 is designed for internal dust suction type bits and fitted on the dust collecting device body 211.

Abstract: A retractable dust containment device includes a forward ring, a collapsible cylindrical center portion, a stretchable rear cover, and draw strings. The forward ring is made from or covered by a plastic or soft material to prevent or reduce marring or damage to a work surface. The center portion includes a spring element pushing the forward ring away from the rear cover, and is enclosed by material to contain dust. The rear cover is a rubber like material and includes a window sized to allow a chuck and rotating drill elements to pass through and seat a non-rotating nose of the drill in the window. Draw strings pass through guides on the perimeter of the rear cover, attach to the forward ring, and are joined behind the rear cover, allowing the forward ring to be drawn to the rear to allow clear viewing on the work surface.

Abstract: In order to improve a device for a drilling machine in such a way that manual drilling can be carried out with optimum conditions, it is proposed that the device include a workpiece jigging device, a guide device for the guidance of the machine when there is a displacement of the workpiece jigging device, and a control device for the control of the feed displacement of the workpiece jigging device and the machine. The control device has combinations of impact dampers and/or springs to achieve control over the feed displacement.

Abstract: Object: A drill dust collector is provided that is capable of drilling holes in an area ranging from a position near a corner to a position distant from the corner and that can be positioned with a side face in contact with an upright face such as a wall during drilling. Means for Solving: The drill dust collector has (i) an opening 2C provided in the upper face of a box having an open lower face 1C, for receiving a drill inserted therein; (ii) a suction port 1U connected to the leading end of a suction hose 3 connected to an suction apparatus; and (iii) a contact member 1A of high flexibility formed so as to extend around the lower face of the box. The box has a lid member 3 composed of the opening 2C and its peripheral part, and a box body 1. The lid member 3 is placed so as to be rotatable relative to the box body 1 and the opening 2C is located at a position the center of which is shifted from the center of rotation of the lid member 3 relative to the box body 1.

Abstract: It is an object to provide a spindle device of a machine tool which has a simple structure and is capable of having high suction efficiency of cutting chips. A draw bar bringing engaging claws into engagement with a tool holder or releasing the engagement includes an engagement drive part moving the engaging claws to an engagement position with the tool holder; and a draw bar main body connected to the engagement drive part, and the engagement drive part is inserted into the draw bar main body to be detachably connected to an inner surface of the draw bar main body.

Abstract: A vacuum assembly has a vacuum housing. The vacuum housing has lower and upper ends. The vacuum housing has a cylindrical wall adapted to secure the system onto a work surface. An enclosure assembly has an enclosure housing. The enclosure housing has lower and upper ends. The enclosure housing has a cylindrical wall. The upper end has two semi-circular closure panels. The panels have hinges. The panels are adapted to cover the upper end. The panels having mating semi-circular recesses. In this manner a passageway is formed. A horizontal membrane couples the vacuum and enclosure housings.

Abstract: A main body of a machine tool is covered with a cover. A ceiling portion of the cover that is situated over a spindle motor is provided with an opening portion. The cover is provided with hanging portions that hang down from the opening portion with a predetermined clearance from side surfaces of the spindle motor other than the rear surface. Air that is mixed with a misty cutting fluid in a space inside the cover is sucked in through a suction pipe by a mist collector. The outside air flows into the space inside the cover through the clearance. The outside air that passes through the clearance is driven to flow through vents by a built-in cooling fan of the spindle motor, thereby cooling the motor, and is then discharged to the outside. In consequence, the temperature in the space inside the cover can never be increased by heating of the spindle motor.

Abstract: Disclosed are tools and related methods for collecting metal shavings and slugs which are produced when cutting access holes into a surface.

Abstract: A device for removing drill dust when drilling a hole into a wall has a base member and at least one vacuum chamber provided in the base member. At least one suction site is provided. A connector is connected to the base member and adapted to connect a vacuum unit that removes by suction at the suction site the drill dust produced by drilling. The at least one suction site and the at least one vacuum chamber are spatially separated from one another.

Abstract: A pocket hole jig tool system includes a base on which a workpiece is supported. A drill guide support is slidably mounted to the base. Drill guide bushings are movably mounted relative to the drill guide support for clampingly engaging the workpiece and for guiding a drill for engaging the workpiece. A stop collar assembly is adjustably mounted relative to the drill guide bushings to automatically ensure a proper pocket hole location and depth for the workpiece inserted in the tool system.

Abstract: There is provided a hole saw system comprising a hole saw including a bottom portion and a body portion; a mandrel, including apparatus for receiving the hole saw; wherein the hole saw includes a plurality of slot pairs, the slot pairs being offset from each other on the body portion allowing a tool to be inserted into one of the slot pairs for removal of a slug.

Abstract: A device for the manufacture of drilled holes, cut-outs, plane surfaces or the like, includes an attachment structure, which is designed for the attachment of the device to at least one component to be machined, a feed device, which is designed to track a drill of a drilling machine, and a control device for controlling the feed device and a drilling machine. In one example, the feed device includes a support for the drilling machine, which is arranged substantially in the center of a crossbeam.

Abstract: A system for removing debris generated by a cutting tool draws the debris into a mixing chamber formed in a workpiece clamp where the debris is combined with a high velocity airflow. A vacuum source draws the debris-air mixture into a cyclonic airflow extraction chamber where the mixture is accelerated before being extracted from the clamp through an exhaust channel. A clamping ring seals the area surrounding the cutting site so that air velocity in the mixing chamber is increased and debris is accelerated into the extraction chamber.

Abstract: A method of reducing foreign object debris (FOD) during drilling operations is provided. The method includes disposing a vacuum housing with a computer aided design (CAD) formed drill template in an operative position on a work piece, actuating a vacuum operatively connected to the vacuum housing, thereby creating negative pressure between the template and the work piece, the negative pressure acting on the debris resulting from the drilling operations, and enhancing the negative pressure without manipulating the vacuum.

Abstract: A collet clamping nosepiece for a power feed drill is described which includes at least one clamping piston located along a centerline of the nosepiece, an expansion mandrel comprising a frusto-conical exterior surface, and an expandable collet. The expandable collet is configured to substantially surround the expansion mandrel and operatively connect to the at least one clamping piston. Operation of the at least one clamping piston causes the mandrel to move along the exterior surface of the expansion mandrel for engagement and disengagement of the collet with a bore configured for insertion of the collet.

Abstract: A well bore fluid recovery system and method is disclosed for recovering a column of well bore fluid within a stand of casing before cutting the casing. The recovery system relates to a system for preventing fluids from being spilled when casing is being finished for a well bore. After being run the casing must be cut and finished at an appropriate level to install rig equipment such as blow out preventers along with other equipment. However, because of earlier operations, the entire length of casing is typically filled with drilling fluid. Depending on conditions, the length of casing which is to be cut and removed may therefore over a 100-foot (27.4 meter) column of drilling fluid therein. The drilling fluid in this section must be properly drained before the casing is cut and removed.

Abstract: A dust collector is disclosed for use with a drill bit or a depth stop that is coupled to a drill bit. The dust collector includes a rear attachment portion configured to be axially fixed to a drill bit or to a drill bit depth stop that is axially fixed to a drill bit. An intermediate non-collapsible portion is attached to a front end of the rear attachment portion. The intermediate non-collapsible portion defines a dust-collecting pocket and is structured to inhibit collapse as the drill bit is inserted into a workpiece. A front collapsible portion is attached to a front end of the intermediate non-collapsible portion and at least partially collapses as the drill bit is inserted into a workpiece.

Abstract: A drilling device includes an end cutting tool, a main housing, a motor, a transmission, and a dust collection unit. The end cutting tool processes a workpiece. The motor is provided in the main housing for generating a torque. The transmission transmits the torque to rotate the end cutting tool. The dust collection unit collects dust generated by the rotation of the end cutting tool. The dust collection unit includes a dust case for accumulating the dust therein. The dust case is detachable from the main housing and has an inlet and an outlet. The inlet and the outlet are oriented in a single direction.