Abstract: A utility tool having a plurality of elongated channels extending the length of a body member. Each tool is provided with a threaded member for selectively locking the tool in a retracted position, an extended position, or a position in between. A central channel is provided which is of a configuration to accept a sliding knife blade or a tool implement of the same cross sectional configuration as is carried by the outboard channels.

Abstract: An exchangeable screwdriver with work-head storage module(s) mainly consisting of a support, a shank disposed in front of the support for connecting at its front end an exchangeable work-head, and at least one cabin type module detachably connected to a rear portion of the support and, together with the support, forming a handle of the screwdriver. Each of the cabin type modules has a plurality of holes provided at its front surface to each stably receive a spare exchangeable work-head therein. Multiple cabin type modules may be sequentially connected together to provide work-head storage space that is not limited by the size of a general screwdriver handle, so that the storage and carrying of multiple spare exchangeable work-heads can be more convenient.

Abstract: A tool combination includes a socket with a hole extending axially therethrough having a large square drive portion and a small drive portion and at least one shoulder between said large and small drive portions. In one embodiment the small drive portion of the hole is hexagonal in shape and a hexagonal bit has an application end and a coupling end, the application end being insertable into the hole from the large drive portion thereof. The coupling end is provided with a retainer in the form of either an enlarged head or a laterally projecting ear which seats against the shoulder, with the application end of the bit projecting forwardly from the bit end of the socket. In a second embodiment the tool combination is a drive adapter, the small drive portion of the hole being square in shape. A square drive lug is insertable in the small drive portion of the hole from the large drive portion thereof and has upset crimped corners forming projection ears to seat against the shoulder.

Abstract: A locking member including a sleeve and a U-shaped plate. The sleeve has an axial hole at one end thereof and its outer surface is provided with an annular groove having a pair of holes arranged face-to-face with each other. The U-shaped plate has clamp portions having protrusions which penetrate through the holes in the groove of the sleeve to project within the axial hole of the sleeve for temporarily clamping a rod object inserted into the sleeve.

Abstract: An improved screwdriver in which a replaceable bit is removable secured to a mandrel by the bit being axially slidable in an axial socket in the end of the mandrel. A resilient split-ring which serves to retain the bit in the socket is carried by and replaceable with the bit. With each new bit a new split-ring is also provided.

Abstract: A tool combination includes a bit socket with a hole extending axially therethrough and having a square drive portion and a hexagonal portion and a circularly cylindrical retaining portion between said drive portion and said bit portion, the portions being of successively smaller width from the drive end to the bit end. A hexagonal bit has an application end and a coupling end, the application end being insertable into the hole from the drive end thereof. The coupling end is provided with a retainer in the form of either an enlarged head or a laterally projecting ear which seats in the retaining portion of the hole, with the application end of the bit projecting forwardly from the bit end of the socket. An associated drive lug, when received in the drive portion of the hole, retains the bit place.

Abstract: An assembly screw driver having a handle with a through hole connecting the front end and rear end of the handle; the through hole has a support device fixed therein near the front end of the handle to support and secure the base of the body of the screw driver. The body and the handle of the screw driver are detachable and the base of the body may be inserted via the rear end of the handle along the through hole to engage with the support device so that the body may be concealed in the handle.

Abstract: A screwdriver is provided with a handle including an insert and an O-ring wherein the O-ring is positioned between the insert and a shoulder in the opening into the handle. A bit is held in the handle by the O-ring. A method of assembly is provided wherein an O-ring and an insert member are positioned around a shaft of a bit and then the bit is inserted into a handle, followed by the O-ring and the insert. The bit is removed from the handle leaving the O-ring positioned between the insert and a shoulder of the handle, for subsequent receipt of the same end of the bit, another end of the bit, or a different bit.

Abstract: A tool bit retaining assembly for a tool of a type having a tool bit receptacle and a spring receiving region with a hole opening into the receptacle and a tool bit insertable into the receptacle. The tool bit has a transverse groove proximate an insertion end thereof, and includes a ball bearing with a diameter only slightly larger than that of the hole such that upon being pressed against the hole the ball bearing extends through the hole into the receptacle and engages the transverse groove in said tool bit. A split ring spring having a split extending from one end to the other with a portion transverse to the axis thereof is positionable around said spring receiving region such that the transverse portion of the split is opposite the ball bearing.

Abstract: A polygonal bit is frictionally retained in a mating socket opening of a drive socket by the provision of recesses in the flat surfaces of the bit, the formation of each recess creating a raised ridge of material displaced from the recess and projecting from the flat surface around the perimeter of the recess for frictional engagement with the corresponding drive surface of the drive socket. Recesses may be formed in flat surfaces on opposite sides of the bit, with one or two recesses being formed in each such surface. Various shapes of recess are disclosed.

Abstract: There is disclosed a direct acting lock mechanism to secure a tool within a driver which is useful for securing open channel sockets used to securing aerospace fasteners in a driver. These sockets have a flatted shank, typically hexagonal in cross section, and are received in a socket receptacle of the driver which has a cross section matching that of the shank. In the preferred embodiment, the flatted surfaces of the shank are formed to have substantially coextensive flats which are displaced through an angular increment of at least about 15 degrees. The flats do not extend the entire length of the shank, however, thus providing a thin shelf which has a cross section which matches the internal flatted surface of the socket receptacle of the driver.

Abstract: Depth locator apparatus for insert bit holders provides a means for adjustably setting the depth of a screw head relative to a fastened work-piece surface. The apparatus is comprised of a sleeve, externally threaded, and with an internal bore to affixedly engage the drive end of a bit holder. The apparatus additionally includes two locking rings with internal threads to engage the external thread of the sleeve. The depth of the fastener relative to the work-piece surface is determined by the location of the outermost lock ring, relative to the insert bit, as it locates against the surface, being constrained against axial movement by the rearmost lock ring. The forward ring includes a work engaging cap that rotates relative to the sleeve and the rings.

Abstract: An adapter device for attachment to a drive member having a clutch biased into disengagement for converting that drive member into a positive rotational drive member. The adaptor device comprising an outer casing having first and second opposed openings and a slot in a sidewall of the outer casing, the second opening having an interior thread for engaging an exterior threaded portion of the drive member. A drive shank having a first end thereof for engaging a rotatable member and a second end thereof for engaging a drive end of the drive member is supported by the outer casing.

Abstract: A device for holding a lock key firmly while inserting the key in a lock on a building, automobile, filing cabinet or other. The purpose of the tool is to impart torque simultaneous with a rocking motion to the key. This causes marks to be made on the key by the lock pins or wafers and shows the locksmith where to file the key to make it open the lock. This procedure is well known to those in the locksmith's trade, and is called impressioning.

Abstract: An improved adapter sleeve comprises a cylinder-shaped adapter sleeve which has a lower adapter and an upper adapter. The lower adapter has a square recess hole, and the upper adapter has a hexagonal recess hole. The bottom surface of the upper adapter includes a rectangular surface and two symmetrically inclined triangular surfaces. The rectangular surface is disposed between the two inclined triangular surfaces. The angle between the retangular surface and each of the two triangular surfaces is no more than 45.degree. and no less than 5.degree..

Abstract: Multiple-head tool such as a multiple-head screwdriver includes an electrically insulated handle; a shaft which has one end inserted into the handle; a multiple-headed bit which is mounted to rotate within a slot in the other end of the shaft; and an electrically insulated sleeve which is mounted to move along the shaft and to rotate about the shaft. In use, the multiple-head bit is rotated so that the desired head extends outward from and substantially parallel to the shaft and another tool or a spur is disposed within and substantially parallel to the slot. The sleeve is then moved down the shaft to cover at least a portion of the slot to enclose and hold the head or spur disposed therein rotationally fixed.

Abstract: Depth locator apparatus for insert bit holders provides a means for adjustably setting the depth of a screw head relative to a fastened work-piece surface. The apparatus is comprised of a sleeve, externally threaded, and with an internal bore to affixedly engage the drive end of a bit holder. The apparatus additionally includes two locking rings with internal threads to engage the external thread of the sleeve. The depth of the fastener relative to the work-piece surface is determined by the location of the outermost lock ring, relative to the insert bit, as it locates against the surface, being constrained against axial movement by the rearmost lock ring.

Abstract: A stronger screwdriver blade is disclosed which is particularly effective for driving round-headed screws. The screwdriver blade has an elongate shank with a tapered end extending from the shank and terminating in a tip. The tip has a straight edge perpendicular to the shank and has a predetermined length and thickness, with side edges extending back toward the shank from ends of the end edge. The tip has substantially parallel, planar sides extending back toward the shank from the end edge to inner edges which, at the side edges, are spaced a distance from the end edge which is approximately equal to the thickness of the end edge. The inner edges are curved with the planar sides being from one and one-half to three and one-half times as wide at central portions as at end portions. From the inner edges, opposite side surfaces of the tapered end extend abruptly outwardly in a direction toward the shank so that the blade tip is thicker at high stress areas thereof.

Abstract: A socket having a polygonal cavity at its front end and an inner drive tool unit in the recess. The set includes a single socket and a plurality of units of different sizes, each unit including a wafer and an inner drive tool element. All the wafers have the same external dimensions, but the inner drive tool elements are of different sizes. Another form includes a plurality of units, each including a socket and an inner drive tool element, semi-fixed together.

Abstract: A tool holder device for drill bits, screw tip bits and like tools permits rapid exchange of the tools. A holder body of the device defines a tool receiving opening in one end thereof for receiving the shank of a tool therein. A spring clip is secured at one end thereof to the holder body and is movable between an operative position wherein the other end of the clip engages and retains a tool received in the opening in the holder body and an inoperative position wherein the clip is out of engagement with that tool so that the tool can be replaced. An axially movable control pin is received in a transverse bore through the holder body and is of a length longer than that bore.

Abstract: A Multiple Bit Screwdriver has a handle with a plurality of bits in a circular array of longitudinal bores within a handle magazine. A rotatable end cap on the handle is provided with a slot for receiving the bit, and the desired bit is selected by rotating the end cap to align the slot with a particular bore. The selected bit is withdrawn from the magazine by inserting a second bit into the bore through the slot in the end cap, thereby forcing the selected bit out of the bore through the opposite end. The bit is retained in working position on the screwdriver shaft by magnetic means. Double-ended bits may be utilized.

Abstract: A multipurpose handle for a gun cleaning kit has a coaxially aligned bore in one end of a cylindrical member and a perpendicular bore centrally of the member for selective threaded engagement with a cleaning rod section, to serve as either a "push" handle or a "pull" handle for the rod. The other end of the member has a coaxially aligned hexagonal socket opening with a magnet at the bottom for holding and driving a matching hexagonal screwdriver bit. Another perpendicular bore located between the end bore and the central bore of the handle permits the rod section to be slid through the handle for increasing the torque applied to the screwdriver bit. The exterior of the handle is knurled for better gripping.

Abstract: A multiple bit handtool having a first elongated barrel and a second elongated barrel rotatably attached to the first barrel. Bit-holding means on the ends of the barrels accept and hold bits. The second barrel may be rotated to a position perpendicular to the first barrel to provide greater torque.

Abstract: In a tool bit driver, a body suitable for mounting on a square drive of a socket wrench is provided with a bit socket adapted for receiving a tool bit at one end of the body, and diametrically opposed grooves are formed to extend longitudinally within the socket. A spring is provided with resilient fingers seated within the socket grooves, and reversely bent ends are formed on each spring finger for engaging the bit in surface-to-surface contact for positively and releasably securing the bit in a driving position within the socket.

Abstract: A combination pocket tool has a shank and a handle. The shank has a tool at one end and a tool drive at the other end. The handle has a steel sleeve embedded within a hollow cavity. A first detent on the tool drive secures the tool or the tool drive within the cavity of the handle. A second detent on the tool drive assists in securing the tool drive within the cavity or secures a detachable tool to the tool drive.

Abstract: A hand-held combination screwdriver having a plastic handle that receives a reversible round steel driver with a flat blade screwdriver at one end and Phillips driver blades at its other end. An elongated channel or slot with side recesses is formed in the handle and receives both ends of the driver, and the side recesses are shaped to engage and lock the flat blade end of the driver without additional parts. A "U" shaped locking key at the bottom of the channel holds and locks the Phillips end of the driver and also defines a stop for the flat blade end.

Abstract: A screwdriver is provided which engages the head of the screw, and also grips the screw. The screwdriving and gripping assemblage may be readily interchanged with another in the handle of the screwdriver. Opening and closing of gripping jaws is effective by the sliding of an outer sleeve which surrounds another sleeve of which the gripping jaws form a part, and which other sleeve is slidable on the shaft of the screwdriver. The handle comprises a front part and a rear part which are rotatably connected together for rotation of the forward part and of the screwdriver shaft, while the rear part is held fixed.

Abstract: Handle adapter and chuck apparatus for a power bit includes a quick release chuck having a spindle with a longitudinally extending bore in the spindle adapted to receive the shank of the power bit. A radially extending bore extends through the spindle and communicates with the bore. A ball is disposed in the bore and contacts a portion of the shank of the power bit disposed in the bore. A spring biased sleeve is disposed about the spindle and includes a tapered bore which bears against the ball to bias the ball against the shank of the tool.

Abstract: A bevel gear driven offset screwdriver arrangement includes a housing which bounds an elongated passage and an opening which communicates with the passage and is centered on an axis that includes an obtuse angle of substantially between 100.degree. and 135.degree., preferably 105.degree., with the axis of the passage. A shaft is rotatably received in the passage and carries at its end close to the opening a first bevel gear which meshes with a second bevel gear that is rotatably received in the opening. The housing is constituted by two separate half-shell sections which are held together by two holding rings that are slid onto semi-tubular regions of such sections and urge the latter together, as well as by screws. The second bevel gear has a central recess of a non-circular cross-sectional configuration, and a compatibly configurated support portion of a bit element is received in this recess and entrained for joint turning with the second gear element.

Abstract: This invention is a one-half inch member sandwiched between an extension key adapter and a combination lug lock, and means for snap fitting together so to convert different size drives to a one-half inch drive.

Abstract: An adjustable screw driver having an improved structure, and more particularly to an adjustable screw driver with a detachable shank having two different tips, a symmetrically-grooved handle on which a flute is set for disposing a wire spring which is attached to the handle by a screw at one end and associated with a control plate by its other end through an aperture of the plate having a square engaging hole at the center. A piece of restraining board having a cut on its periphery is fixed to the bottom of the handle by screws.

Abstract: A mounting chuck for attachment to a drill having a rotatable collar on a main chuck portion. The main chuck portion includes a cavity receiving therein a tool mount having a tool removably secured therein at either or both ends thereof. The mount conforms to the cavity and the collar encircles both the cavity and the mount to selectively either retain the mount in fixed position on the chuck portion or allow the mount to be removed therefrom. The chuck portion includes a hollow axially extending chamber so that one of the tools on the mount may extend into the chamber while the other tool on the mount extends out from the chuck portion in an operative position. In this manner, the tools on the mount may differ and either tool may be quickly and easily selected.

Abstract: A socket bit holder formed with a circumferential groove in a bit holder opening of the socket, the holder arranged to receive a tool bit having peripheral notch means, and a split ring in the circumferential groove arranged to engage the notch means of the tool bit whereby the bit will be maintained in the holder.

Abstract: A wrench for a cylindrical pin and the like adapted for connective mounting to, supporting, handling, maneuvering and rotating the pin, the pin having a wrench engageable hole therethrough, the wrench including a frictionally operable curvilinear pin engaging recessed portion, an end operating handle portion, and a pin hole engaging end, the wrench, when engaged to the pin with the hole operatively interengaged, being operable for positionally, maneuverably and rotatably moving the pin.

Abstract: A screwdriver is provided that can be used for installing and removing either single slot screws or screws having two slots that cross at their centers, i.e., "PHILLIPS" type screws. The screwdriver is provided with a shaft which includes a tip segment having a configuration suited for engagement in the slots of such a cross-slotted screw. An elongated slot is in the tip segment along the length of the shaft. A blade, suited for engagement in the slot of a single slot screw, is slidably mounted in the tip segment slot. When the blade is in a first position extended beyond the end of the shaft tip segment, it can be engaged in the slot of such a single slot screw. When the blade is in a second position retracted or housed within the elongated tip segment slot, the tip segment can be engaged in the slots of such a cross-slotted screw.

Abstract: A maually operated tool or driver for Allen head screws in which clamping jaws are reciprocated to and from a clamping position by turning of a knurled sleeve. The jaw clamps against a hexagonal operating rod, which can be slid into position through a passageway extending from end to end and through the tool body. This enables the rod to be applied to the tool from either end and militates against the necessity of a predetermined length for the rod. The operating rod fits the socket of the Allen head screw for tightening or loosening it. Flats on the working end of the clamping jaws flatwise engage the side of the rod for insuring against relative turning movement between the rod and the jaws.

Abstract: A hand tool such as a socket wrench has a handle with integral means at one end to selectively mount any of a plurality of interchangeable tool elements in the form of socket wrench sockets. Longitudinally extending pockets about the periphery of the handle store extra sockets, and each socket is releasably retained in a pocket and may be removed therefrom by digital manipulation.

Abstract: A screwdriver with replaceable blade is inserted in the longitudinal direction of the handle from one end in non-rotatable complementary manner into an opening having a non-round cross section with which there is associated a spring for holding the blade by friction. The opening is formed from a socket which is of polygonal shape on an inside and an outside thereof and a part (x) of the length thereof is held in non-rotatable complementary manner within the handle while the remaining length (y) thereof projects beyond an end surface of the handle said socket being formed on an inner wall thereof with an annular groove, and a spring of ring shape is disposed partly in the groove.

Abstract: A compact combination tool set providing a complete set of tools such as screw drivers, wrenches, knives, utensils or combinations of such devices is provided. The set comprises a plurality of inter-fitting tool segments, each tool segment having a tool or connecting shank projecting from one end thereof and a recess at the other end thereof adapted to receive a tool or shank projecting from one end of a second tool segment, said recesses and said projecting tools including portions which are noncircular in cross-section and which are adapted to be telescopically and frictionally inter-engaged so as to prevent relative rotation thereof, whereby a plurality of tool segments may be selectively inter-fitted for compact storage, and selectively separated for use. The tool segments in one embodiment have shanks which are of the same length and cross-section whereby tool segments of different sizes are selectively interengageable with each other or with an associated handle means.

Abstract: A combined screwdriver and boring apparatus comprising a tool having a handle, removable cutting and screwing blades, each of the blades having both downwardly tapered cutting edges thereon and an elongated tip adapted to enter a hole in the slotted head of a screw for both preforming a seat for the threaded shank of a screw, keying the screw to the blade for holding the screw to the blade when initiating screwing and flat surfaces engaging the slot in the screw for screwing the same.

Abstract: A screwdriver and screw adapted so that at least one of them has a bore extending into it for receiving a pin held by the other so that in use the pin engages in the bore to hold the screwdriver and screw against lateral movement relative to one another.

Abstract: A screwdriver or the like has a shank adapted to hold any one of a number of double ended bits together with a handle for the shank having storage slots for those bits not being held in place by the shank. A split ring, rotatable on the stem of the handle, holds the stored bits against displacement until the ring is rotated to place the space between the ends of the ring into alignment with a selected slot.

Abstract: A fastening device including a bolt, screw or nut and a socket wrench therefor, each of the bolt, screw or nut and also the socket having polygonal surfaces one of which is greater in size and one of which is lesser in size, the greater such surface of the socket matching the greater surface of the bolt, screw or nut and the lesser such surface of the socket matching the lesser surface of the bolt, screw or nut.One feature is the provision of an auxiliary member which fits into the socket of the standard socket wrench, the auxiliary member providing the lesser polygonal surface for such socket.Another feature is the use of a round body or head having such greater or lesser polygonal surfaces.

Abstract: A screwdriver or like hand tool has interchangeable tips or bits storable in a groove or recess in a handle, and a foldable auxiliary lever for increased torque which is pivotable into another recess in the handle. The interchangeable tips or bits and the lever are magnetically releasibly retained in their recesses. Bits fit into and are magnetically retained in a socket at the end of a shaft rotatably mounted in the handle. The lever in its inwardly pivoted storage position keys the shaft to the handle. A reversible ratchet is provided. The tool may be a screwdriver or a tool for wrench sockets, screw extractors, or other types of bits or tips.