Abstract: A system and method are disclosed for providing a quantum proof key exchange. The method includes generating at a first computing device a random bit ai, encrypting ai using quantum-proof homomorphic encryption ? to yield ?A(ai), transmitting ?A(ai) to a second computing device, generating at the second computing device a random bit bi, encrypting bi using the quantum-proof homomorphic encryption ? to yield ?B(bi), transmitting ?B(bi) to the first computing device and generating a common key between the first computing device and the second computing device based on ?A(ai) and ?B(bi).

Abstract: A portable doweling jig includes a generally cuboidal body comprising four sets of bores that facilitate the drilling of precisely positioned holes into workpieces for receiving standard-sized construction dowels. Despite the absence of moving parts, the present invention accommodates dowels of different diameters, and also workpieces of both standard and nonstandard thicknesses. Furthermore, the present invention makes possible the creation of three types of dowel joints: edge-to-surface, edge-to-edge, and surface-to-surface.

Abstract: An adjustable pocket-cutting device includes a worktop supporting a workpiece, an actuation lever assembly including an actuation lever pivoting about an actuation lever pivot and configured to support a router having a router bit such that the router bit sweeps through a slot in the worktop and into a workpiece as the actuation lever pivots from a retracted position to a deployed position, and a stop assembly for adjustably limiting pivotal movement of the actuation lever to the deployed position. The stop assembly includes a stop lever adjustably mounted relative to the worktop and a stop member extending from the stop lever across or through the actuation lever, wherein the stop member abuts against an abutment surface of the actuation lever to adjustably limit the movement of the actuation lever to the deployed position.

Abstract: Jigs and fixtures for aligning, guiding, and/or holding a workpiece on woodworking machinery during a woodworking operation are described, as well as methods of making, modifying, and using jigs and fixtures.

Abstract: A kit for assisting in the location of holes to be drilled in a door of a thickness between 1?? to 1¾? for the installation of a conventional lock set at a backset of either 2?? or 2¾? with no additional hardware and without damaging the door. A first guide plate defines a first hole saw guide. A second guide plate is attachable to the first guide plate in one of two orientations and defines a second hole saw guide. At least one clamping member is carried by the second guide plate and extends substantially parallel to the first guide plate. Each of the first guide plate and the clamping member define opposing biasing members such that when mounted on a door, the door is centered within the kit.

Abstract: A pocket hole jig includes base with a base plate and first and second lateral side walls extending along the base plate, and a body disposed between the first and second lateral side walls and slidable along the base in a forward direction and a rearward direction. The body includes a drill bit aperture angled downward toward the base plate. The pocket hole jig also includes a fence movable between a raised position and a lowered position and having a contact surface engageable with an end of the workpiece when the fence is in the lowered position to position the base a predetermined distance from the end of the workpiece. The contact surface is in a first position when the fence is in the raised position and a second position when the fence is in the lowered position. The second position is forward of the first position.

Abstract: Present invention teaches a notcher having primary structures of a base plate with a mounting plate set in a vertical orientation. A square plate carries a pivotable trapezoidal plate that carries the notcher assembly. The square plate is slidably connected to said mounting plate wedges on the square plate where those wedges match to v-grooves on the side of the mounting plate. A T-post clamp serves to provide the holding structure to hold work pieces in place for the notcher assembly to do the needed work of cutting/notching out a hole.

Abstract: An adjustable holding device having a pair of adjustment drill grooves and a transverse exhaust channel. Attached to the base is a vertical support member having guide supports. At least one of the guide supports is horizontally adjustable. Drill guides are removably attached to the guide support for both vertical and horizontal adjustment.

Abstract: A screw-driving machine support for a plate-lifting tool comprises a telescopic mast comprising a fixed segment and a first telescopic segment mounted so as to slide inside the fixed segment and a lifting mechanism using a gear or winch for the first sliding segment relative to the fixed segment. The lifting mechanism comprises a driving shaft with a rotation axis and a reversible fastening means with a shaft for screwing and unscrewing a screw-driving machine, which comprises, in the position of use a member for fastening to the mast, a lateral stop which is vertical, parallel and laterally offset to the axis of rotation of the driving shaft by a given center distance and is designed to lock a screw-driving machine handle laterally in the position of use and a member for adjusting the position of the vertical stop (420) relative to the axis of rotation of the driving shaft.

Abstract: The embodiment is an L-shaped housing with a configuration that provides both for support to a small hand-held workpiece and to specific drill bit alignment toward the task of placing multiple, immediately adjacent, aligned channels within the body of a model car. To optimize car speed in the Pinewood Derby event, the child can specifically align and strategically place channels in the model car for the optimal loading of cylindrical weights. As an alternative to free-hand drilling with an attempt at sighting drill bit direction in two planes, the device provides for precise drill bit alignment to small hand-held workpieces. As an alternative to more complex drill jig and machine shop equipment, the device enables a child to safely and effectively introduce multiple, aligned channels with precision into the model car.

Abstract: A pocket hole jig including a base having a clamp end and a toggle end, a guide carried by the base intermediate the clamp end and the toggle end and a clamp assembly carried by the base intermediate the clamp end and the guide, and reciprocally movable between an engaged position when moved toward the guide and a disengaged position when moved away from the guide. The clamp assembly includes a carriage slidably carried by the base, a clamp arm extending above and carried by carriage, a foot coupled to the clamp arm for engaging a workpiece, and a platform extending from the carriage overlying the base for receiving a workpiece and preventing the workpiece from contacting the base.

Abstract: A turbomachine rotor blade milling machine system includes a fixture having a body including first and second opposing surfaces and a slot. The fixture is configured and disposed to connect with first and second rotor blade sections mounted in a rotor wheel. A mounting system includes at least one mounting element coupled to one of the first and second opposing surfaces of the body at the slot. A milling machine is coupled to the one of the first and second opposing surfaces through the at least one mounting element. The milling machine includes a cutter and is configured and disposed to form an opening extending axially through a dovetail portion of a third rotor blade section arranged between the first and second rotor blade sections.

Abstract: A device (1) for cutting an ophthalmic lens (L1) to be mounted onto a spectacle frame, includes: elements (10) for locking and rotating the ophthalmic lens about a locking axis (A1); a tool holder which supports at least one first tool (60) rotatable about a rotational axis (A2) and a second tool (80) rotatable about a finishing axis (A6) and which has a spacing mobility (ESC) for the spacing apart thereof from the locking axis, a shifting mobility (TRA) for the axial positioning thereof along the locking axis, and a pivoting mobility (PIV) for adjusting the orientation of the rotational axis relative to the locking axis; and elements for controlling the three mobilities of the tool holder. The rotational and finishing axes are separate from one another.

Abstract: A fastener storage assembly comprises a container and a lid. The container has a bottom and two pairs of opposed sidewalls. The lid acts as a fastener alignment guide for locating a fastener to be driven through a deck board having a width w into a joist having an engagement edge face thickness t. The fastener alignment guide has a template and a pair of aligned substantially identical wings equidistantly spaced a distance w. The template defines a pair of aligned openings each having a center and a medial axis passing through each center. Each of the wings projects perpendicular to the template and defines a recess defined by a pair of parallel edges spaced a distance t. A plane through the medial axis and perpendicular to the template is equidistantly spaced the edges.

Abstract: Provided is a unit stacking device for a secondary battery, which stacks one or more first radical units having a first size and one or more second radical units having a second size greater than the first size and includes a stack jig, which includes a first inner space having a size corresponding to the first size and a second inner space disposed above the first inner space and communicating with the first inner space and having a size corresponding to the second size. The first radical units are stacked in the first inner space through the second inner space, and then, the second radical units are stacked in the second inner space.

Abstract: A cam lock connected with a fence assembly includes a handle portion, a top carrier and a bottom carrier connected by a threaded shaft. The handle portion and top carrier are positioned above the fence assembly and a work table or surface; wherein the bottom carrier is positioned below the fence assembly and work table or surface. The top carrier and bottom carrier both have a pair of alignment arms with a space positioned therebetween, the alignment arms of the top carrier nest with the alignment arms of the bottom carrier. The handle portion and top carrier both have cam surfaces that engage one another such that when the handle portion is rotated around the axis of the threaded shaft the handle portion is raised or lowered thereby raising or lowering the bottom carrier, thereby locking or unlocking the fence assembly in a quick, durable, easy and accurate manner.

Abstract: A pocket hole drilling machine is presented. The pocket hole drilling machine has a cabinet made of a molded unitary monolithic piece. A monolithic top plate is connected to the cabinet with an opening in the middle for an insert plate which is positioned therein. A handle extends above the top plated as does a clamping assembly however actuating mechanics of the device move within the cabinet, thereby improving safety by eliminating pinchpoints. An adjustable fence assembly having cam locks connected thereto is also connected to the top plate. This arrangement provides a low cost, safe and efficient pocket hole drilling machine.

Abstract: In one respect, the invention is a coring machine for removing portions of food item blanks, the coring machine comprising a plate assembly for holding the food item blanks and a pair of coring assemblies, each comprised of a plurality of coring bits that are aligned with passages in the plate assembly.

Abstract: A quick adjust ratcheting pocket hole jig is presented. The pocket hole jig has a base with a removable upright connected thereto. A guide assembly is slidably received within the upright. Removable and replaceable side supports are connected to the base by way of a dove tail joint. Removable and replaceable adjustable stops are connected to the base by way of key holes. A clamp assembly is connected to the base having a handle portion and a clamp follower. The clamp follower has a ratcheting mechanism and a compressible plunger assembly. The clamp follower can quickly be adjusted using a button on the clamp follower that disengages the ratcheting member such that it can be quickly adjusted. When the handle is operated, it draws the clamp follower towards the upright and guide assembly compressing the spring loaded plunger assembly thereby quickly and tightly and adjustably holding a workpiece therebetween.

Abstract: A device for drilling pocket holes may include a guide carrier having a front surface urging a workpiece; at least one slant bore disposed at the guide carrier for receiving a drill bit; an anti-skid structure disposed at the front surface to secure the workpiece; a drill bit carrier reciprocally and slidably mounted on the guide carrier from a pre-drilling position to a post-drilled position toward and away from the guide carrier and a drill bit rotatably coupled and retained therein; a clamp disposed at the base and an amplifier to actuate the clamp for clamping or unclamping the workpiece by a user's power, wherein the amplifier is disposed away from the base; a quick positioning of the clamp by a braking lever; a lateral stop disposed at the clamp to set a lateral position of the pocket hole from a side face of workpiece; an adjustable end stop disposed at the guide structure or the guide carrier to adjust a pocket hole distance from an end face of workpiece; a lateral through opening disposed at the guid

Abstract: A method and apparatus for angularly drilling during a tapping procedure into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle.

Abstract: A tool drills holes into different sized wooden blocks so that the holes are precisely positioned while providing a means to position the tool to match an existing line or slot on the wooden block. The tool includes two identical pieces that, when assembled, adjusts to accommodate variable sized model car blocks, provides a view port to look through the tool for positioning, and contains perfectly aligned drill guide holes on either end and in the middle of the assembly to guide a drill bit that drills the required holes needed to accurately place axles and eyelets into the model car. The tool is adjustable to accommodate different sized blocks. The holes can be angled to create wheel camber when axles inserted.

Abstract: A tool for guiding a drill from both sides of a post having a top and at least one circumscribing side so that a single longitudinal axial bore is formed, the tool comprising: a first part adapted to clamp over the top of the post and position first and second guide plates on opposing sides of the post, the first and second guide plates having openings formed therein; and a second part adapted to position two opposing drill bushings in the openings in the first and second guide plates.

Abstract: A drill bit jig includes an elongate member, two jig securing elements and a rotatable drill bit guide. The elongate member is hollow so that one or more elongate drill bits may be stored therein. The drill bit guide includes a plurality of through holes where the axes of the through holes are parallel to the axis of the elongate member. Each of the plurality of through holes in the drill bit guide has a different diameter for accommodating drill bits of different thicknesses. The jig securing elements each include an L-shaped bolt and a door protecting material encasing one of the straight sections of the bolt.

Abstract: A clamping device is attached to a front part of a body of a boring machine for clamping the boring machine and a workpiece together. The clamping device comprises a fixed piston fixed on the front part of the body, a movable piston equipped over the front part of the body movably in the axial direction of a spindle of the boring machine, a first pressure chamber, a second pressure chamber, a pressurized fluid-supply device to supply pressurized air to the first pressure chamber and the second pressure chamber so that the movable cylinder is moved in the axial direction, a connecting mechanism an end portion of which is connected to the movable cylinder, and a clamping unit which is connected to the other end portion of the connecting mechanism, and is fixed to a certain position of the workpiece.

Abstract: A fastener installation tool including a guide that guides a fastener into a side of a work piece at an angle, while optionally restraining the fastener from wobbling due to rotation, even upon initial entry into the work piece. The guide can define an angled bore including a fastener entrance opening and a fastener exit opening which is adapted to be positioned immediately adjacent the work piece. The guide can include a material ejection port between the openings, through which material bored from the work piece can be evacuated from the angled bore to prevent binding of the material with the fastener. The tool can include a clamp assembly that clamps opposing sides of the work piece to precisely align and steadily hold the angled bore as a fastener is being installed in a side surface. Related methods of using the tool to install fasteners also are provided.

Abstract: A door lock installation kit for use with a first standard door width and a second standard door width, each door having a side face and a front face includes a side hole guide including a side hole aperture arranged to abut the side face of the door, a guide housing movably coupled to the side hole guide, and a back housing movably coupled to the side hole guide and arranged such that the back housing and the guide housing are movable to clamp the door and position the guide housing to abut the front face of the door. A front hole guide includes a front hole guide aperture and is movably coupled to the guide housing and movable to one of a first position corresponding to a first door backset and a second position corresponding to a second door backset.

Abstract: An apparatus includes a frame, a centering mechanism, a positioning mechanism, and a mounting plate. The centering mechanism is coupled to the frame and is configured to adjustably center the apparatus widthwise on the ski. The positioning mechanism is coupled to the frame and the mounting plate can be removably coupled to the positioning mechanism. The mounting plate includes a unique pattern of apertures that provide a guide for drilling mounting holes in the ski. The positioning mechanism is configured to adjustably move the mounting plate in a lengthwise direction relative to the ski to a position to accommodate a select length of a select reference member. In some embodiments, a second mounting plate can be removably coupled to the positioning mechanism that can include a second pattern of apertures, which collectively with the pattern of apertures of the mounting plate provide a guide for drilling holes in the ski.

Abstract: An adjustable doweling jig is provided. The adjustable doweling jig has a pair of bore guide carriers that are symmetrically and simultaneously adjustable relative to a base structure of the doweling jig. The bore guide carriers carry a plurality of bore guides such that dowel holes can be placed using the bore guides at a broad range of locations, limited only by the size of the jig.

Abstract: A method and apparatus for angularly drilling during a tapping procedure into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle.

Abstract: A panel face drilling system using a plunge router wherein an attached guide assembly in conjunction with a guide rail registered to a dual position work holding fixture provides tool guiding means to repeatably drill hole patterns within an array of perpendicular columns and rows. The column and row positions are fixed in relation to the work holding fixture. Nonstandard hole positions are obtainable through use of spacers. The work holding fixture is configured to allow loading of two work pieces at a time each to be aligned against a fence, positioned against a stop, constrained by a resilient clamping means, ready for drilling. By referencing the hole position number sets marked on the tool guiding means one can quickly drill required holes in one panel and then drill a mirror image of that hole pattern in a second panel.

Abstract: A system for modifying a slot in a rotor includes a drill, a clamp connected to the drill and configured to engage with an interior surface of the slot, and means for supporting the drill from a stationary platform adjacent to the rotor. A method for modifying a slot in a rotor includes connecting a coupling to a stationary platform adjacent to the rotor, connecting a drill to the coupling, and locating the drill proximate to the slot. The method further includes inserting a clamp into the slot, engaging the clamp with an interior surface of the slot, and operating the drill to create a cavity in the slot.

Abstract: Portable robot for carrying out the drilling process in the assembly of aeronautical components which are secured on a support known as a stand. The robot comprises a displaceable platform in order to permit it to be located close to the stand, and an arm, which supports a frame comprising a beam intended to support a drilling head that can be displaced in the three axes.

Abstract: A system for modifying a slot in a rotor includes a base having a vertical axis. A drill is slidingly connected to the base along the vertical axis, and a clamp is connected to the base and configured to engage with an interior surface of the slot. A method for modifying a slot in a rotor includes locating a drill proximate to the slot and inserting a clamp into the slot, wherein the clamp is slidingly connected to the drill. The method further includes engaging the clamp with an interior surface of the slot and operating the drill to create a cavity in the slot.

Abstract: The present is a hole saw tube notcher with a rotary vice that aligns a tubular workpiece and a hole saw aligning assembly with a rotatable arm that aligns a hole saw to form a single or multiple cut notch geometry with a set radial middle that remains fixed when the rotary arm is rotated and when different diameter workpieces and hole saws are secured to the notcher.

Abstract: A crawler assembly includes an attachment mechanism that is removably attachable to a stringer. The stringer has a vertical web and a longitudinal axis. The crawler assembly includes a longitudinal slider that is engageable to the attachment mechanism and having a normalizing mechanism disposable in bearing contact against the vertical web for maintaining an orientation of the longitudinal slider relative to the stringer. The longitudinal slider is movable along a direction parallel to the longitudinal axis. The crawler assembly includes a lateral slider that is mountable to the longitudinal slider and is movable along a direction perpendicular to the longitudinal axis. The lateral slider includes a drill bushing. The longitudinal and lateral sliders cooperate to move the drill bushing to at least one predetermined hole location.

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: A drill bit jig includes an elongate member, two jig securing elements and a drill bit guide. The elongate member is hollow so that one or more elongate drill bits may be stored therein. The drill bit guide includes a plurality of through holes where the axes of the through holes are parallel to the axis of the elongate member. Each of the plurality of through holes in the drill bit guide has a different diameter for accommodating drill bits of different thicknesses. The jig securing elements each include an L-shaped bolt and a door protecting material encasing one of the straight sections of the bolt.

Abstract: A jig for cutting plugs for pocket holes from a workpiece has a base leg, from which transversely extend guide and clamp legs. One or more guide channels extend through the guide leg at an angle to an interior face of the guide leg to guide the sleeve of a rotating cutter bit that has a cutting edge at its end and a removed section forming a cutting blade. A clamp extends from the clamp leg to engage one face of a workpiece whose end is mounted on a raised ledge on the base leg and holds the workpiece opposing face against the guide leg interior surface as the sleeve end cutting edge and blade advances into and cuts entirely through the workpiece to cut the plug. A collar on the cutting bit shaft engages the guide leg to prevent the sleeve end cutting edge from contacting the base leg. The jig also can be used for making pocket holes by using the appropriate drill bit.

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 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: 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: Methods and systems for concentric clamping for manufacturing assemblies are disclosed. In one embodiment, a drilling assembly includes a spindle assembly configured to perform a drilling operation at a drilling location on a workpiece, and a clamping assembly having an actuator concentrically disposed about the spindle assembly. A nosepiece is coupled to the actuator and is configured to apply a clamping force concentrically about the drilling location on the workpiece. The actuator may include an inner housing having an outwardly extending flange, and an outer housing disposed about the flange of the inner housing. Pressurization of a first chamber moves the inner housing forwardly and applies the clamping force of the nosepiece against the workpiece, and pressurization of a second chamber moves the inner housing aftwardly and retracts the nosepiece away from the workpiece.

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: 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: An apparatus for use in cutting a mortice pocket in a leading edge of a door in-situ, the apparatus comprising: at least one elongate guide means; clamping means for clamping the elongate guide means to a door or other workpiece; a drill guide means mounted on the elongate guide means; and translating means; wherein the drill guide means comprises a bearing block and a saddle member, the saddle member having a bearing block aperture formed therethrough arranged to releasably receive the bearing block therein, the bearing block having a hole therethrough adapted snugly to receive a drill shaft such that the drill shaft is supported, directly or indirectly, by the bearings of the bearing block and is rotatable therein, and wherein at least one of the bearing block aperture and the bearing block is tapered.

Abstract: A non-pneumatic system for use with a workpiece is described. A clamp assembly having a clamp pad is secured to the cabinet. An electrically operated tool is movably secured to the cabinet. The tool has a remote switch which when activated in turn activates the tool. A lever (e.g., a handle) is operatively coupled to the clamp assembly and the tool. When the lever is manually moved, the remote switch is activated and the clamp pad moves towards the work surface. Preferably, the tool also moves towards the work surface opening by manually moving the lever. For example, the tool utilized in this non-pneumatic system may be a drill or saw.

Abstract: A drill guide apparatus includes a body providing a workpiece clamping surface. The body includes one or more drill guides, wherein the one or more drill guides pass through the workpiece clamping surface at an acute angle, a first track, and a second track. The drill guide apparatus further comprises a first slider mounted on the first track, and a second slider mounted on the second track. The first slider includes a first extrusion that extends beyond the workpiece clamping surface and is slideable along the first track to adjust the position of the first extrusion relative to the workpiece clamping surface. The second slider includes a second extrusion that extends beyond the workpiece clamping surface and is slideable along the second track to adjust the position of the second extrusion relative to the workpiece clamping surface. The drill guide may also include a removeable clamp retainer.

Abstract: A burrless, flexible track drilling system employing a counterweight tool balancing subsystem. The counterweight tool balancing subsystem provides essentially a “weightless” feel to a machining subassembly of the system that carries a drill and an electromagnet. This enables an operator to move the machining subassembly vertically with only a very minimal degree of effort being required. The machining subassembly also includes a plurality of lifting subassemblies that aid the user in lifting and lowering the electromagnet away from and toward a pair of panels on which a drilling operation is being performed. This also significantly reduces operator fatigue and contributes to a highly ergonomic system.

Abstract: A pocket-hole drilling apparatus for drilling pocket-holes in a workpiece is disclosed. In one embodiment, an initiation switch actuates clamping the workpiece and the movement of a drilling module to cut a pocket-hole. The drilling module has a motor and a step-drill mounted thereon, which is slidably mounted on a guide module. The axis of the drilling module movement intersects work surface. In another embodiment, a movable fence provides the adjustability of pocket-hole depth. In yet another embodiment, two actuator tips are disposed in a fence to prevent the drilling of a pocket-hole through the sidewall of a workpiece. In still another embodiment, a short stroke clamping actuator is used to prevent human finger injury. In still another embodiment, a blower or an ejector pump is used to remove wood chips, wherein the blower is either attached to a drilling motor or to a separate blower motor; the ejector pump is mounted near the drill guide.