Abstract: A trimmer line, hook disk system forming a line trimmer head (e.g., FIGS. 10 & 10A, 19 & 20) for attaching to a powered, rotational device (FIGS. 11-16) to provide a line filament grasscutting/weed-removal action. The trimmer head preferably includes a circular, protective, bottom base (D2/60/160), a main trimmer head top (D3/D30/130), the two forming a disk shape, and a series of peripherally spaced, line holders; with these three basic elements fastened together for ultimate attachment to the powered 31 device. Ten exemplary line holder are shown (FIGS. 1-9B), with most allowing oscillating (O) motion in their attachment to the trimmer device (D1), allowing the lines to move backwardly when contacting a relatively hard item, and/or some fixed (F). A “broom” embodiment is disclosed (FIG. 17). When used, flexible line, e.g. of nylon, is inserted in (1) and held (2) by the line holders preferably using hook or hook-like line attachments.

Abstract: A hand-held cutter with automatic blade changer which has a casing, short blades each with an aperture, a pushbutton and a plug, and the casing is composed of an outer casing, a fixed blade holder and a retractable blade holder; and it further has a blade changer which is divided into a blade unloading chamber and a blade loading chamber. The present invention has the advantages of being simple in construction and convenient to use, and allowing the users to change and dispose of the blades without touching them, thereby effectively protecting personal safety.

Abstract: A rotary food cutting device is provided. The rotary food cutting device comprises a handle assembly and a removable blade assembly. The removable blade assembly has a blade, a first blade mounting member, and a second blade mounting member. The blade is positioned between the first blade mounting member and the second blade mounting member. The first blade mounting member and the second blade mounting member interact with the handle assembly to removably secure the blade.

Abstract: An axially elongate hobby knife having an external housing defining an internal cavity is described. The hobby knife has structural features that permit the rotation of an rearward actuator. Such rotation causes the blade to withdraw into, or advance from, the cover, thereby to provide for enhanced safety and security of the blade.

Abstract: A folding machine for folding sheets of paper, board and the like, includes at least one knife-shaft unit for cutting, perforating, scoring or crimping the sheets. The knife-shaft unit has at least one pair of driven knife shafts. Knife-retaining units for retaining knives are fitted in a rotationally fixed manner on the knife shafts. The knife-retaining units have a split construction and are formed by a plurality of partial shells. A knife holder for a knife shaft of a folding machine, is also provided.

Abstract: A utility knife for use with a replaceable flat blade, has an elongated housing having a longitudinally extending guide open at the front end, a longitudinally extending and transversely open slot, and a longitudinally extending holding face directed transversely opposite to the stop. A blade holder having a seat for the blade is slidable in the housing between a front use position forwardly bearing on a longitudinally displaceable stop and with the blade projecting longitudinally forwardly from the guide past the front end and a rear storage position with the blade wholly contained in the housing rearward of the front end and the holder out of engagement with the stop. The stop can be secured in any of a plurality of longitudinally offset positions in the housing to adjust the front position of the blade.

Abstract: A surgical blade includes a handle with a recess sized to receive the proximal end of a blade assembly. The recess includes a notch as well as opposed facing distal ridges designed to engage elevated surfaces in the blade assembly to maintain the blade assembly and handle assembled. The blade assembly includes a blade portion and a fitting having a protrusion sized to be received in the proximal notch of the recess in the handle when the blade portion is assembled to the handle. The fitting also includes side faces having opposed elevated surfaces obliquely disposed so that they are engaged by the distal ridges within the handle recess. The fitting also includes an upwardly extending catch that engages a distal surface on the handle to assist in locking the blade assembly to the handle. The recess of the handle includes inner tapered surfaces.

Abstract: A folding knife having a finger guard extension mounted to the handle portion that is operatively configured to be positioned in a stored position when the knife is in a closed orientation. The finger guard is adapted to be withdrawn from the handle in an extended position when the blade is in an open position where in one form the finger guard is adapted to open the blade when a force is applied thereto.

Abstract: A tool adaptor for use with a reciprocating saw includes a first end configured to be coupled with the reciprocating saw and a second end configured to be coupled with a tool. The tool adaptor also includes an elongated portion defined between the first end and the second end. The tool includes a coupler configured to be coupled with the second end. The tool also includes a tool device. The tool device may be a scraper, a saw, a grout saw, a file, a wire brush, a cultivator, or other type of tool device. The tool may also include a keyless chuck. The tool adaptor and tool may form a unitary construction.

Abstract: A deburr tool for deburring an end of a conduit includes a handle, cutting bit, and head. The handle is to grasp the deburr tool. The handle has a handle axis. The cutting bit includes a distal end, proximal end, body portion and a cutting profile. The body portion is generally cylindrical and has a bit axis. The cutting profile is generally “U” shaped and resides in a plane generally parallel to the bit axis. The cutting profile tapers from an opening disposed at the distal end to an arcuate base. The opening has a distance between a first side and a second side that exceeds a wall thickness of the conduit. The head rotatably secures the cutting bit to the handle. The bit axis coincides with the handle axis.

Abstract: A holder including a main section; a plurality of pockets on a first side of the main section, wherein each pocket is sized and shaped to receive at least a portion of a tool cutting blade therein; and mounting pins on the main section at respective entries into each of the pockets. Each of the mounting pins are sized and shaped to be inserted into a mounting hole of the cutting blade when the cutting blade is inserted into the respective pocket. Each pair of the pockets and mounting pins are adapted to cooperate to hold the respective cutting blades on the holder until the blades are removed by a user.

Abstract: A cold knife (10) has a handle (12) within which a receiver bore (34) extends longitudinally. A split collet (38) is slidably mounted within the bore (34) and is configured to receive within a shank groove (40), at any desired longitudinal position therein, the shank (14a) of a cutting blade (14). Because the shank (14a) may thus be selectively positioned relative to split collet (38), cutting blade (14) may be positioned in infinitesimally small increments at a desired degree of extension relative to the cold knife (10). Terminal end (14c) of cutting blade (14) may thus be positioned anywhere from and between extreme positions (P1 and P3) when shank (14a) is clamped within split collet (38) by locking lever (22) moving split collet (38) to place the nose portion (38c) thereof into compressed engagement with reduced-diameter stop portion (34c) of the receiver bore (34).

Abstract: A hand tool made up of a handle member and a tool clamp member where the handle member is made to receive the tool clamp member by engaging a flat surfaced extension of the tool clamp member with a mating hole in the handle member. The flat surfaced extension is tapered in shape and matches with a tapered hole in the handle providing a rigid fit when the handle member and tool clamp member are pressed together. The rigid fit of the two pieces is achieved by elastic properties of the handle member against the externally tapered flat surfaced extension of the tool clamp. The tool clamp provides means to uses replaceable blades or other tools to maintain the tool in good working condition while in use.

Abstract: A double-edged utility knife for carpet installers, roofers, glaziers and sheet rock workers has a two-part handle. The handle clamps a detachable reversible double-edged blade at a transverse angulated position with respect thereto. Vertical cuts can be made in tight corners without applying excessive force. The transversely angulated knife blade affords access permitting vertical cuts in tight corners. During cutting the user's hands are displaced from the cutting line, and kept from being inline with the cutting blades. Operation-induced injuries are virtually eliminated. The double edge blade is provided with a geometry especially well suited for wallboard, roofing, carpet cutting/glue scraping and glazier use.

Abstract: The invention relates to a scraper blade holding device comprising a mounting unit into which a scraper blade is normally inserted. According to the present invention a scraper blade carrier, which has in its region projecting out of the mounting unit fastening means for a scraper blade, is inserted into the mounting unit. This has the advantages that scraper blades with reduced dimensions can be used.

Abstract: A power cutter comprising: a housing 2; an engine 24 mounted within the housing 2; a support arm 7 mounted on the housing and which projects forward of the housing; a blade mounting mechanism rotatably mounted on the end of the support arm and which is capable of being rotationally driven by the engine 24 when the engine is running; a cutting blade having a circular central hole and which mounts on and is rotationally driven by the blade mounting mechanism; a liquid fuel aeration mechanism 126 to generate aerated fuel for the engine; an air intake 314 for the provision of air for the liquid fuel aeration device 126; an air filtration mechanism 316 to filter the air drawn in from the air intake for the liquid fuel aeration mechanism; a fuel tank 124 for providing fuel to the liquid fuel aeration mechanism; and an exhaust 146 through which the exhaust gases generated by the operation of the engine are expelled; wherein the blade mounting mechanism comprises: a spindle 70 rotatably mounted on the support arm and

Abstract: A combination precision knife and blade dispenser having a handle portion configured to receive a blade and a dispenser. The dispenser is configured to support at least one blade in a new blade portion thereof. The dispenser further has a used blade portion configured to support at least one blade therein, where a user, manipulates the handle portion and engages a base of the at least one blade therein, and where in order to dispose of the blade, the user inserts the blade into the dispenser and disengages the base of the blade from the handle portion such that at no time does a user need to touch an edge portion of the blade.

Abstract: A tool includes a wooden handle that has a curvilinear outer surface extending along an entire length thereof. The handle has a centrally registered axial bore formed therein that travels between distal and proximal ends of the handle such that the bore passes through the entire length thereof. An elongated swivel arm has an overall length greater than the handle length and is rotatably coupled to the handle such that same freely rotates along clockwise and counter clockwise directions. A cutting blade is monolithically formed with the swivel arm, is distally spaced from the handle, and is axially offset from a centrally registered longitudinal axis of the handle. The cutting blade rotates in sync with the swivel arm and has a concave face. The cutting blade is proximally spaced from a distal end of the swivel arm.

Abstract: A hobby knife employs two threadably engaged forward and rear sections and a blade holder which mounts the knife blade for positioning generally outwardly from the front end. The forward section has a tubular shape with three angularly spaced longitudinal indentations which are traversed by a series of longitudinally spaced ribs. The forward and rear sections are substantially covered by overmold material.

Abstract: A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mechanical bonds that embrace the cover on the housing. The knife includes flexible posts from the cover that project into the blade storage compartment of the housing to prevent internally stored spare blades from moving within the storage compartment. An elastomeric blade clamp integrally formed with the cover serves to restrict lateral movement of blades of varying sizes when installed in a cutting position within the knife assembly. A rear quick release latch and interlocking housing sections provide a convenient way to open and close the knife and assure that it is also secure and firmly held when locked in a safe cutting position.

Abstract: A fastening device for pneumatic saw comrpising a body portion and a guide member mounted on the front end of the body poetion; the center thereof is mounted with a movable guide assembly connected together with a power transmission shaft; one side of the movable guide assembly is furnished with two screw holes for receiving two screw bolts respectively; the center cylindrical hole of the movable guide assembly is loaded with a chuck cylinder, which is connected with the movable guide assembly by means of screw threads therein; the chuck cylinder is furnished with a long slot; one side of the long slot has a cylindrival hole for receiving a saw blade; the cylindrical hole of the long slot is opposite to a screw hole on one side of the movable guide assembly; after a screw bolt is screwed into the screw hole, it will press the saw blade firmly in place; one side of the movable guide assembly has another screw hole for receiving another screw bolt so as to have the chuck cylinder fastened firmly in the cylindri

Abstract: A cutting tool attachment that attaches to a vibrating tool, such as a vibrating sander or the like, to convert the vibrating tool to a cutting tool for cutting asphalt composition shingles, carpet, drywall and other work materials. In a preferred embodiment, the cutting tool attachment comprises a bracket member that removably attaches to the base of a vibrating sander. A cutting blade, particularly one configured for the type of work material to be cut, removably attaches to the bracket member. In a preferred embodiment, an extension member interconnects the cutting blade and bracket member. The bracket member attaches by use of screws, sliding engagement with a plurality of side engaging members, clamping mechanisms and/or by use of a variety of other attaching mechanisms. Once attached, the vibrating tool vibrates the bracket member, which vibrates the cutting blade so as to cut the work material faster and with less effort.

Abstract: A multifunctional molding name plate removal tool includes a blade attached to a blade retainer having a drive arm and a threaded handle attached thereto. The threaded handle may be removed in order to enable a pneumatic tool to drive the tool.

Abstract: Blade assembly 18 for use in a microkeratome during eye surgery includes a cutting blade 20 and a blade holder 22 attached to the blade 20. Tabs 30 are attached to the blade holder 22 to assist in aligning the blade assembly 18 with a mating slot 12 in a microkeratome to minimize damage to the cutting blade 20. Tab 30 is attached to the blade holder 22, such that the tab 30 may be detached from the blade holder 22 after insertion into the microkeratome.

Abstract: A foldable tool retainer capable of updating the tool easily comprises an upper casing sheet; an upper pad; a work tool; a lower pad; a resisting sheet; and a lower casing sheet. When updating the work tool, it is only necessary to press the upper button to drive a buckling end of the upper control sheet to separate from the edge of a rotary shaft of the resisting sheet so that the lower pad can rotate around the ratchet shaft of the lower casing sheet again and the rotary shaft moves out of the notch of the upper pad. Then other components are detached along a sequence of actions reversing to the assembly process.

Abstract: A hand tool is formed of a handle and a removable tool part . The tool has a protruding section and a first magnet at the end of the protruding section. The handle has a bore with a second magnet. The tool is assembled by inserting the protruding section into the bore so that the first magnet contacts the second magnet. Ramps are provided on the tool part and handle; the tool is disassemble by rotating the tool part relative to the handle. Thanks to the ramps, the magnets are separated : the tool part and the handle may then be pulled apart.

Abstract: A pizza cutter has a hollow semi-circular shaped handle having a convex curved radiused top edge to facilitate use and reduce hand stress. A removable cutter wheel has outwardly extending axles having protrusions on the outer ends thereof that have a snap fit relationship with recesses on the inner surfaces of the handle whereby the cutter wheel can easily be snapped into and out of the handle for cleaning. The cutter wheel has a dual inner and outer axle assembly engaging complementary shaped bearing surfaces on the handle to distribute pressure exerted on the wheel and keep the cutter wheel aligned with the handle when cutting movement is applied to the cutter.

Abstract: A set of cutlery includes a plurality of superimposable cutlery components, which are adapted to be releasably connected so as to form a transportable unit. In order to facilitate the handling of such cutlery, it is suggested that the cutlery components should be accommodated in a protective housing and that they should be releasably secured to the protective housing by a connection element.

Abstract: A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder includes a main wall and guard wall pivotally mounted on the main wall to pivot from an open position to a closed position overlying the main wall. The main wall being adapted to hold a blade so that a blade is interposed between the main wall and guard wall when the guard wall is in its closed position.

Abstract: A utility knife having a handle and a blade holder which is pivotally mounted on the handle for movement from an unfolded position to a folded position. The handle has a space adapted to receive the blade holder when the blade holder is in its folded position. The blade holder includes a main wall and guard wall pivotally mounted on the main wall to pivot from an open position to a closed position overlying the main wall. The main wall being adapted to hold a blade so that a blade is interposed between the main wall and guard wall when the guard wall is in its closed position.

Abstract: A package for a tip, such as a replaceable tip for a bipolar electrosurgical device, is used for insertion of the tip onto and removal of the tip from the end of a device handle, without requiring any direct contact between the user's hand and the tip. The package includes a housing having a tip cavity shaped to receive the tip and an opening through which the end of the handle is insertable for removable attachment to the tip. A releasable locking mechanism, which is releasable in response to the end of the handle being disposed in the opening for removable attachment to the tip, retains the tip in the tip cavity. The package may be made from a single piece of molded material, such as a clear plastic. The package may also be used with monopolar, diathermized and non-bipolar tips, as well as other sharp tips such as cannulae, pics and blades, that are attachable to the end of a handle.

Abstract: A tool is disclosed having a holder provided with a mounting opening for mounting on a drive shaft, which may be driven in oscillating fashion, and having further a fixture for mounting a working element. The working element comprises at least two holding sections, spaced one from the other in tangential direction to the mounting opening, and wherein a mounting plate is provided which is engaged by releasable securing elements that coact with the holding sections for clamping the working element against the holder.

Abstract: The present cutter is comprised of a plate for attaching to the top of a conventional hammer tacker. A notch at the front end of the plate is for engaging a raised head at the front of the hammer tacker. A belt clip projecting from the rear end of the plate is angled away from the hammer tacker for clipping to a belt. A side extension is arranged on the plate to one side of the notch. A shallow groove is arranged on the bottom surface of the side extension, and a blade is positioned in the groove. A thumb screw attached to the blade is positioned through a slot in the side extension. The blade is movable along the groove for extension or retraction relative to the front end of the plate. When extended, the blade is angled to one side of the hammer tacker.

Abstract: The present invention relates to a Heavy Duty Utility knife with ergonomic finger and thumb positions in relation to an internal stabilizer pivot structure which includes a wheel for safer, stronger, smoother for more efficient cutting. The said invention also provides the user with an easy access, blade change and storage feature. This feature allows for proficiency of task, as well as, creating a safe knife with skid plate to prevent injury.

Abstract: A blade holder for cutting machines having a blade head held on a raising and lowering device and having an adjustment mechanism for a circular blade that is held on the blade head, whereby the adjustment mechanism, for the movement of the circular blade between a cutting position and a ready position, is provided with an adjustment piston rod having an adjustment piston that is guided in a chamber of the blade head housing and is adapted to be moved by compressed air, and the adjustment piston rod is biased by a compression spring into the ready position of the circular blade, is characterized in that the piston surface (23, 24, 40) of the adjustment piston (22) that is effective in the direction of adjustment has a cross-sectional area that is different in different piston positions such that as the path of the adjustment piston (22) in the direction of adjustment increases, the piston surface (23, 24, 40) that is acted upon by compressed air increases.

Abstract: A blade gripping mechanism in a heavy duty artistic knife includes a straight handle combined with a first and a second halves and secured by a pair of screws. The straight handle has a tubular projection in front end for elastically disposing a positioning member which has a pair of tenons symmetrically formed on opposing outer peripheries and a rectangular receiving space in rear end for releasably disposing a tool box therein. A head has a first annular ring on rear end sleeved on the tubular projection including two pairs of mortises in an inner flange made engageable with the tenons and an annular gap in communication with a flat gap in the body. A blade rack having a second annular co-axially sleeved on the tubular projection together with the first annular ring and a blade disposing space in side of a flat upright for placing a blade therein. When changing a new blade, press the blade rack downward to have it rotating out of the flat gap and then push it in again after the changing of the blade.

Abstract: In a laser apparatus, precision of wavelength control, wavelength stability and speed of wavelength control are increased, and an optical component is prevented from being polluted. A ball screw is used a feed screw of a feed screw mechanism that changes the orientation angle of the optical component.

Abstract: A replaceable-blade knife useful as a carpet knife or utility knife, and having a handle with a spare-blade holder movably mounted therein, and a blade-clamping bar for securing an active cutting blade at one end of the handle. A locking means is provided to lock the holder in a protective closed position, and alternatively to release the holder to an open position by movement of the bar, and to enable ready access to blades in the holder.

Abstract: A high-speed, hand-held attachment for flex rotor shafts of power rotary tools, and also for direct attachment to power rotary tools without flex rotor shafts, that converts rotary motion to reciprocating motion for precision control of cutting, carving, sawing, chiseling, filing, sanding, and engraving on delicate work pieces. The attachment is one assembly comprising a one-piece front one-piece enclosure (20), a rear one-piece enclosure (30), a high-speed bearing (22), a one-piece rotating piece (40) with integral cam groove, a one-piece reciprocating piece (50) with an integral cam follower on one end and with its other, exposed end accomodating the attachment of a chuck or collet and with geometry to prevent rotation, and a thumbscrew (32). Rotating piece (40) attaches directly to the rotary power source and provides the cam action drive to reciprocating piece (50). Bearing (22) provides rotative support for the other end of rotating piece (40).

Abstract: A gear head for a manually guided power implement is provided. Part of the tool shaft, which receives a rotatable cutting tool, is embodied as a cylindrical splined shaft having grooves for the positive transmission of torque to the cutting tool. An abutment plate is disposed on the tool shaft and has an abutment surface that extends essentially perpendicular to the longitudinal axis of the tool shaft. A centering cylinder extends through a circular central opening of the cutting tool and has inwardly directed longitudinal ribs that engage in the grooves of these splined shaft. A free end of the centering cylinder is provided with a beveled portion that extends from an outer contour of the cylinder to into the grooves.

Abstract: A saw having an angle adjustable blade includes a handle and a blade. The handle includes a body and a ratchet structure. The ratchet structure includes a positioning member and a ratchet rod. Thus, the angle of the blade relative to the handle may be adjusted arbitrarily by rotating the blade relative to the handle, without having to change and adjust the angle of the handle, thereby facilitating the user operating the handle, and thereby preventing the user's wrist from being hurt.

Abstract: A multiple receptacle blade holder tool including an elongated rectangular cross section main body with one end being rounded and having multiple rectangular receptacles for blades. The blade holder also has top and bottom surfaces parallel to the blade receptacles and a relief channel forming independent legs that clamp one or more blades in the holder.

Abstract: A mounting and fixing structure of a handle and a tool head of a hand tool includes an urging ring, a fixing seat, a saw blade, an insertion shank, an insertion pin, and a screw. In such a manner, the saw blade may be retained by the insertion shank rigidly and stably, and the insertion shank may be secured in the mounting hole of the socket of the handle rigidly and stably, so that the saw blade may be secured on the handle rigidly and stably.

Abstract: The twine cutter for a bale processor comprises a blade holder has a front end and a back end, the holder further has a top edge that is bevelled to a wedge shape at the front end, a back edge and a base edge. A drive mechanism such as an elongated handle is fixed to the holder for driving the holder back or forth. A cutter blade is fixed to the holder such that a cutting edge is bevelled towards the front of the holder and a further cutting edge is bevelled towards the back of the holder thereby being able to cut twine when the holder is driven forward or backward. The cutter blade may further include a sharpened hook shaped section used to snag and cut twine. The hook shaped section can be positioned at the apex of the triangular upper portion of the single blade. A disintegrator roller for a bale processor comprises an elongated roller arranged to rotate in one direction about its axis with a number of flails intermittently spaced along the length and around the circumference of the roller.

Abstract: A metallic housing utility knife and method for making the device with a soft over molded elastomeric cover to provide blister free comfort and slip proof safety. The cover or skin is molded into the unique structure of the housing in a fashion that results in mechanical bonds that embrace the cover on the housing. The knife includes flexible posts from the cover that project into the blade storage compartment of the housing to prevent internally stored spare blades from moving within the storage compartment. An elastomeric blade clamp integrally formed with the cover serves to restrict lateral movement of blades of varying sizes when installed in a cutting position within the knife assembly. A rear quick release latch and interlocking housing sections provide a convenient way to open and close the knife and assure that it is also secure and firmly held when locked in a safe cutting position.

Abstract: A multiple receptacle blade holder tool including an elongated rectangular cross section main body with one end being rounded and having multiple rectangular receptacles for blades. The blade holder also has top and bottom surfaces parallel to the blade receptacles and a relief channel forming independent legs that clamp one or more blades in the holder.

Abstract: A cutter for vehicle safety belts or the like includes a body having a head in an upper portion and a handle in a lower portion. The head has a blade base surface for a cover plate to be put thereon. The blade base surface is formed relatively lower for receiving the cover plate thereon. The cover plate can be pried open for renewal of a blade. A first blade groove for placing a blade for cutting and a second blade groove for placing another blade on standby are provided parallel to each other in the head. The handle is formed with a small recess on an upper front edge and a large recess on a lower front edge and has a tapered projection positioned between the two recesses for enabling a user to stably hold the handle conveniently.

Abstract: A scraper includes a primary jaw having a first top edge, and a secondary jaw having a second top edge and a bottom tail. The top edges of the jaws are normally opposite to each other. The secondary jaw is connected to the primary jaw between the second top edge and the bottom tail in a relationship of being movable and slightly rotatable with respect to the primary jaw. A wheel screw is threaded engaged with the primary jaw and adapted to move the bottom tail of the secondary jaw away from the primary jaw. Therefore, a blade may be held tightly between the top edges of the jaws when the wheel screw is tightened.

Abstract: The present invention relates to knives and related implements, and, more particularly, to methods and apparatus for attaching a handle to a tang of a knife. One aspect of the invention is for attaching a handle to a tang of a knife by removably coupling an insert having a threaded bore onto a portion of the tang, the insert being adapted to couple with a coupler, the coupler comprising a threaded rod and an expanded head, such as, but not limited to, a bolt. The engagement of the insert and the coupler pulls together the tang and the handle in removably coupling engagement.

Abstract: A handle for detachably receiving different tools. The handle includes a holding part at one end, and a fitting mechanism on another end. The fitting mechanism includes an upper fitting slot and a lower fitting slot. Each of the fitting slots includes a back support and a pair of bending portions that extend from lateral edges of the respective fitting slots, and the back supports of the fitting slots are secured to one another. A clip hook includes a sloped guiding face and a connecting notch hook. The clip hook is secured to the back support of the lower fitting slot. The clip hook is configured to detachably receive a U-shaped portion of a lower portion of a tool that is guided between the bending portions of the lower fitting slot and the sloped guiding face into the connecting notch hook.