Abstract: A portable drill guide apparatus and method enabling precise alignment of both entry and exit points when drilling through workpieces. The apparatus comprises U-shaped mounting brackets, polymer mounting blocks that attach to a portable power drill, and a clamping mechanism with alignment pointer. The invention reverses conventional drilling approaches by first establishing the desired exit point location before determining the entry point, ensuring perfect alignment throughout the drilling operation. Particularly valuable for applications involving cylindrical objects, irregular forms, or scenarios where visualization of both sides of the workpiece simultaneously is impractical, the invention provides bidirectional alignment control for through-hole drilling operations in marine construction, timber framing, utility pole modifications, furniture making, and similar applications where traditional drill presses cannot be practically employed.

Abstract: A connector system for coupling a drill to an input shaft for a trailer-mounted mechanism includes a drill attachment member is elongated from a drill end to an output end of the drill attachment member. The drill attachment member is configured to be clamped by a chuck of a drill adjacent to the drill end. The drill attachment member has a notch extending into the output end and extending transversely through the drill attachment member. An input shaft is engageable by the drill attachment member such that the input shaft is rotatable by the drill attachment member around a central axis of the input shaft.

Abstract: A drill has a body with an outer peripheral surface, a cutting edge located on a first end, a flank surface located along the cutting edge on a rear side in a rotation direction of a rotation axis, and a flute extending from the cutting edge toward a second end. The cutting edge has a first cutting edge, a second cutting edge extending from the first cutting edge toward the outer peripheral surface, and a third cutting edge extending from the second cutting edge toward the outer peripheral surface. A flank surface has a first flank surface located along the first cutting edge with a first clearance angle, a second flank surface located along the second cutting edge with a second clearance angle, and a third flank surface located along the third cutting edge with a third clearance angle. The second clearance angle is smaller than the first and third clearance angles.

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

Abstract: A hole-saw, including a sidewall and an endcap, is provided. The endcap includes projections that fit within notches of the sidewall to form a brazed or welded joint that couples the endcap to the cylindrical sidewall. The projections extend through the notches and are brazed or welded to the base of the sidewall. The endcap couples to the sidewall to form a cylindrical hole saw body. The endcap rotates and supports the hole-saw during operation.

Abstract: A reduction of a bend of a drill during processing is achieved. A drilling device includes: a spindle for rotating a drill so that the drill processes an object; a parallel link mechanism configured to adjust a direction of the spindle; a force sensor configured to detect a moment from the object and about an axis perpendicular to an axial direction of the spindle while the object is processed; and a control section configured to control the parallel link mechanism on the basis of the moment detected by the force sensor so that the parallel link mechanism adjusts a direction of the spindle.

Abstract: Drilling jigs are provided which include a one-piece jig body (preferably additively manufactured from laser-sintered metallic (e.g., aluminum alloy) powders) having at least one set of cylindrical sockets that are spatially separated from one another, and a web member joining the at least one set of sockets. Cylindrical bushings may thus be positioned within each of the cylindrical sockets so as to define respective cylindrical guideways for a drill bit. According to certain embodiments, the web member may be planar and oriented parallel to a substantially longitudinal bisecting plane of the cylindrical sockets.

Abstract: A debris collection assembly includes a jig and an adapter insert. A front wall of the jig defines an aperture therethrough. A back wall of the jig defines an adapter opening that aligns with the aperture. The jig includes a vacuum port and defines an interior cavity that fluidly connects the aperture, the adapter opening, and the vacuum port. The adapter insert is removably loaded through the adapter opening into the interior cavity. The adapter insert either defines an orifice sized to receive a drill bit or defines a cylindrical channel sized to receive a drill bushing that defines the orifice. The orifice is oriented to allow the drill bit to extend through the aperture in the front wall to drill into a work piece. Negative pressure at the vacuum port draws airflow through the interior cavity and captures debris generated from drilling.

Abstract: A drill body supplies a cutting fluid while securing stiffness of a leading end part. A body extends from a base end toward a leading end; a discharge groove to discharge chips; a fluid hole having a part which passes through an inside, of the body, of an inter-groove solid part of the discharge groove and causes a fluid to flow from the base end toward the leading end; and a mounting part in the leading end for mounting a cutting edge. The mounting part has a recessed part along the central axis of the body, and a cross section of the fluid hole changes from a circular shape to a non-circular shape midway along a path of the fluid hole from the base end toward the leading end, and assumes another non-circular shape in a portion which passes a side part of the recessed part.

Abstract: A coring tool for coring doors is provided. The coring tool may include a tool body having a first end and an opposing second end and a clamp member coupled to the tool body adjacent the second end. The tool body and the clamp member are moveable toward and away from each other in response to operation of a clamp actuator. The coring tool may also include a head having guide bushings for inserting a bit through the guide bushings for coring a door. The head may be coupled adjacent the first end of the tool body and the head may be movable toward and away from the tool body to align the guide bushing with the door to be cored.

Abstract: A handle assembly to receive a collet of a tap assembly or a die includes a body defining a non-circular aperture and an axis of rotation that extends through the non-circular aperture. The non-circular aperture is configured to receive the collet of the tap assembly or the die. The handle assembly also includes a grip extending radially from the body and a retainer disposed in the body. The retainer includes an engagement member and a biasing member that biases the engagement member toward the axis of rotation. The retainer is configured to releasably secure the collet of the tap assembly or the die within the non-circular aperture.

Abstract: A method for producing a workpiece threaded hole by a tapping tool, with a drilling stroke, in which the rotating tapping tool is driven into the workpiece in a drilling direction to a nominal drilling depth, and so forming a thread-free pilot hole, and with a tap-ping stroke in which the tapping tool produces an internal thread in the pilot hole with a tapping feed rate and a tapping speed synchronized therewith. The drilling stroke is followed by a reversing stroke in which the tapping tool is guided out of the pilot hole in a reversing direction opposite to the drilling direction. The tapping tool is then radially displaced by a radial offset in an offset stroke. Then, in the tapping stroke, the radially controlled, rotating tapping tool is guided in a circular rotary motion along a circular path around the hole axis.

Abstract: A chamfering tool includes: a movable flange having a cylindrical shape so that one end portion of a joint member is inserted in the movable flange; a second spring member configured to energize the movable flange by one end portion of the second spring member; a spring receiver to which the other end portion of the second spring member abuts; a fixed flange fixed to the other end portion of the joint member; and a chamfering member fixed to the other end portion of the joint member, wherein the fixed flange and the movable flange have abutting surfaces formed by a flat surface, and an axial center of the chamfering member substantially coincides with an axial center of the shaft member when the abutting surfaces abut on each other.

Abstract: A drilling tool includes a drive assembly with a shank that is configured to couple to a power tool and a step drill bit. The step drill bit includes a body having a proximal end adjacent the shank, a distal end opposite the proximal end, and a bit axis extending centrally through the body between the proximal end and the distal end. The body is defined by a wall extending around the bit axis to define a hollow interior cavity of the body. The step drill bit also includes a plurality of axially stacked, progressively sized steps with a first step at the proximal end and a terminal step at the distal end and a flute extending from the proximal end to the distal end. The flute defines a cutting edge.

Abstract: A method is provided for modifying a via from a PCB including a plurality of subassemblies comprising a plurality of layers. The method may include drilling a via of the PCB to form a through-hole to remove an unwanted material in the via of the PCB. The method may also include depositing a carbon-based material over an inner wall of the through-hole. The method may further include back drilling a first portion of the through-hole by a drill from the top of the PCB to form a first blind via. The method may also include selectively plating a conductive material over the carbon-based material to form a plated through-hole.

Abstract: A drilling attachment device for particle collection. The device has a bell-shaped housing designed to be attached to the front of an electric drill. The housing is transparent and is releasably attached to the torque collar of an electric drill using a clamp and thumbscrew. The device is used to collect and contain dust and debris while drilling into various materials providing both safety and convenience benefits.

Abstract: A substrate processing apparatus includes a lower plate in a chamber, an electrostatic chuck on the lower plate, the electrostatic chuck including a first step surface, an intermediate ring disposed on the first step surface of the electrostatic chuck, a lower ring surrounding a portion of the intermediate ring and an outer sidewall of the electrostatic chuck on the lower plate, an upper ring covering an upper portion of the intermediate ring, a screw extending through the electrostatic chuck into the lower plate, and a socket connected to each of the screw and the intermediate ring. Each of the screw, the socket and the intermediate ring includes a conductor.

Abstract: A support device (10) is illustrated comprising a body (14) defining a recess (22a) in its underside, a connector (24) to which a vacuum device can be connected, the connector (24) and recess (22a) communicating with one another so that the vacuum device can extract air from the recess (22a), the body (14) further defining a passage (22b, 26) through which a drill bit (12) can extend, in use, at least part of the periphery of the passage (22b, 26) serving to support the drill bit (12), in use.

Abstract: A quick connect is disclosed for a medical device. The quick connect includes a housing, a slide lock mounted within the housing, and a locking assembly mounted within the housing. The slide lock is for receiving a cooperating connection adapter. The locking assembly includes a substantially annular member having a superiorly facing sloped recess. The substantially annular member is movable along a longitudinal axis of the housing upon rotation of the substantially annular member.

Abstract: A die head for cutting threads in a pipe. The die head includes a drive portion, a die retention portion, a cap, and a plurality of windows. The drive portion has a plurality of recesses configured to receive torque from a pipe threading machine. The die retention portion includes a plurality of die posts. Each die post is configured to receive a die having teeth for cutting the threads in the pipe. The cap is coupled to the die retention portion. Each window is defined between each pair of adjacent die posts and the cap. An end of each die adjacent the cap is visible through a corresponding window of the plurality of windows such that all of the teeth of the die are visible through the corresponding window.