Abstract: An angle retaining assembly of a hand tool comprises a handle; a head having at least one screw hole for receiving at least one resisting element; when the resisting element screws into the screw hole; a front end of the resisting element protrudes out to be in contact with the pivotal portion of the handle to have a resisting effect so as to fix the bending angle between the head and the handle. The at least one screw hole is formed at a lateral side or a front side of the connecting portion. Or the at least one screw hole is formed at a lower side of pivotal portion of the handle.

Abstract: A toolbox with at least one preview window comprises a body having a receiving portion for receiving at least one tool; and at least one preview window for viewing objects in the receiving portion. The preview window can be installed at a front plate of a drawer or a lateral surface of the body or a top surface of the body. The receiving portion may be a single space or a plurality of sub-spaces which are spaced by at least one spacer. A bottom of the body has at least one wheel. Furthermore, a lower side of the front plate of each drawer may be formed with a slot. The user can pull the drawer by inserting a hand into the slot.

Abstract: A replaceable electronic spanner comprises a spanner body; at least one electronic device being installed to the spanner body; each electronic device being installed with a display; at least one end of the spanner body being formed with an inserting opening; one side of the inserting opening being installed with a stain gauge which is connected to the electronic device; the electronic device calculating the variation of resistance of the stain gauge so as to get the twisting force value of the spanner and then displays the twisting force on the display; a display head having a driving portion; one end of the driving portion being extended with an insertion section capable of being movably inserted into the inserting opening so as to combine the spanner body to the sensing head.

Abstract: A tool hand tube rod which comprises a long hollow rod body; having a receiving space; a lateral side of the rod body having an open hole; and one end of the rod body having a inserting end; a driving head inserted into the inserting end of the rod body; a strain gauge installed within the receiving space near the inserting end; a processing unit installed in the receiving space; and a display protruded from the open hole. A strain force of the driving head can be measured by the strain gauge; then the measured value is transferred to the processing unit and then is displayed on the display. Or a lamp installed in the open hole and a switch installed below the lamp body. Or a plurality of driving heads are received in the receiving space.

Abstract: A bendable cutting device comprises a pair of holding portions; a pair of cutting portions; the two cutting portions being pivotally installed to one another; an inner side of each cutting portion having a knife portion; each cutting portion being pivotally installed to one end of a respective one of the holding portions. By moving the two cutting portions closer, the two cutting portions serve to cut one object clamped between the two cutting portions. Each cutting portion has a pivotal recess and each holding portion has a pivotal block; a retainer serves to pivotally install the pivotal block to the pivotal recess so that the holding portion is assembled to the cutting portion. One inner side of the pivotal recess has at least one holes and the pivotal block has a positioning unit corresponding to the holes. The positioning unit is formed by a spring and a steel ball.

Abstract: A clamping device for providing high twisting forces and low damage to a screw device comprises a handle; a driving portion formed with a space; the space including at least two resisting portions and at least two adhesion portions; the resisting portions and adhesion portions being alternatively arranged; each of the connection of the resisting portion and the adhesion portion being formed with a recess for receiving apexes of a screw means so as to prevent the screw means from damage; and each resisting portion having two cambered protrusions at two ends and three sharp teeth between the two cambered protrusions; the apexes of cambered protrusions and sharp teeth being collinear. Furthermore, the driving portion of the present invention can be used to a sleeve so that sleeve has the same function of the driving portion. Thereby it is preferred that there are three resisting portions and three adhesion portions.

Abstract: An insertion type hand tool comprises a tool body having a handle and a connecting portion extended from the handle; the connecting portion having a combining groove; a driving portion having an engaging end corresponding to the connecting portion; at least one side of the engaging end being formed with an inclined side for resisting against the combining groove of the connecting portion so that the orientation of the driving portion is adjustable with respect to the connecting portion; one side of the engaging end near the driving portion having a flat side; the flat side being adjacent with an inclined side; and an elastic unit is installed in the engaging end of the driving portion so as to be positioned in a positioning hole of the connecting portion.

Abstract: A hand tool includes an elongate body and a function end is connected on a first end and a handle is located on the other end of the body. A control device is connected on an outside of the body and includes a display screen which includes an illumination member. The control device is electrically connected with strain gauges so as to display the values of torques that the tool outputs from the function end. The illumination member can be a back light board or light emitting diode such that the users read the information in the display screen in dark areas.

Abstract: An insertable strain gauge spanner which comprises a spanner body having a rod body and a driving head insertable into the rod body; the rod body having a handle and an inserting opening at one end thereof; the inserting opening can be received the driving head; the rod body being installed with a strain gauge; a lower end of the rod body being formed as an inserting opening; the inserting opening being in contact with the strain gauge; thereby the twisting force from the driving head can be transferred to a sensing end of the strain gauge; the twisting force being displayed in a window of the strain gauge; and the driving head having an inserting end with a shape corresponding to that of the inserting opening; and the orientation of the driving head with respect to the rod body is adjustable.

Abstract: A torque detection device on a power tool includes at least one resistive strain gauge connected to an outer periphery of the shaft which is rotatably received in the barrel of the tool and driven by a motor. At least one conductive collar is mounted to the shaft and electrically connected to the at least one resistive strain gauge. A display device includes a display screen which is located at an outer periphery of the barrel and electrically connected to at least one signal member which is electrically connected to the at least one conductive collar. The at least one resistive strain gauge is deformed together with the deformation of the shaft so as to transfer the deformation of the at least one resistive strain gauge to electronic signals which are displayed by digits in the display screen.

Abstract: A replaceable assembly of a tool head comprises a tool body used with a tool head of various forms; the tool body having a handle; at least one end of the handle being formed with a pivotal end for connecting the tool head; one end of the tool head being a driving opening and another end thereof being formed with an inserting end; the inserting end being installed with a buckling unit; the buckling unit being buckled to the pivotal end so as to increase the combination of the pivotal end and the pivotal end; thereby the tool head can be firmly secured to one end of the handle; one lateral wall of the pivotal end of the handle having a through hole for buckling the buckling unit of the inserting end of the tool head; and a periphery of the through hole being formed with a groove.

Abstract: A pivoting assembly of a hand tool comprising a tool body, the tool body including a driving portion, a handle and a pivotal portion; the pivotal portion having a first pivoted end and a second pivoted end; the first pivoted end being installed to one of the handle and driving portion; and the second pivoted end being installed to the other one of the handle and driving portion so that an angle between the handle and driving portion are adjustable. The first pivoted end is formed with a buckling hole; a tooth portion is formed in the buckling hole; the second pivoted end is formed with a post; the post is axially moveable with respect to the tooth portion of the buckling hole; and a bottom of the post is formed with teeth with respect to the tooth portion of the buckling hole.

Abstract: An angle retaining assembly of a hand tool comprises a handle; a head having at least one screw hole for receiving at least one resisting element; when the resisting element screws into the screw hole; a front end of the resisting element protrudes out to be in contact with the pivotal portion of the handle to have a resisting effect so as to fix the bending angle between the head and the handle. The at least one screw hole is formed at a lateral side or a front side of the connecting portion. Or the at least one screw hole is formed at a lower side of pivotal portion of the handle.

Abstract: A pivotable head with a protrusion which is pivotably connected to an end of a handle and a threaded rod is movably inserted in the handle and removably contacts the protrusion so as to position the pivotable head at desired angles. The handle has an aperture in which a control member is rotatably received which is threadedly mounted to the threaded rod so that when rotating the control member, the threaded rod is moved axially to disengage from the protrusion or to contact the protrusion.

Abstract: A pivoting assembly of a hand tool comprising a tool body, the tool body including a driving portion, a handle and a pivotal portion; the pivotal portion having a first pivoted end and a second pivoted end; the first pivoted end being installed to one of the handle and driving portion; and the second pivoted end being installed to the other one of the handle and driving portion so that an angle between the handle and driving portion is adjustable. The first pivoted end is formed with a buckling hole; a tooth portion is formed in the buckling hole; the second pivoted end is formed with a post; the post is axially moveable with respect to the tooth portion of the buckling hole; and a bottom of the post is formed with teeth with respect to the tooth portion of the buckling hole.

Abstract: A socket has an insertion which includes a plurality of parallel first grooves and ridges on an outer periphery thereof and a pneumatic tool includes a rotatable driving end on a head thereof and the driving end has a recess with a plurality of second grooves and ridges defined in an inner periphery thereof. The insertion is slidably inserted into the recess and the first grooves and ridges of the insertion are engaged with the second grooves and ridges of the recess. A connection device secures the socket to the driving end, the connection device includes a protrusion and a receiving groove on either the insertion or the inner periphery of the recess such that the protrusion can be engaged with the receiving groove.

Abstract: An article capable of naturally emitting a signal for easily searching the article. The article can be a tool, an accessory of a tool, a fastening member or the like. A signal element is mounted on the article to be searched. The signal element itself is able to naturally emit a detectable signal, whereby the article to be searched will automatically emit a signal for easily searching and locating the article to be searched.

Abstract: A searchable article such as a tool, an accessory of a tool, a fastening member or the like. An identification chip is mounted on the searchable article. The identification chip is able to emit an identification signal for a detector to identify. Therefore, the searchable article will emit a signal for easily judging whether the article is installed in a true position or locating the article.