A nozzle for a tool for injecting chemical anchor resin into a hole in a wall, said nozzle comprising a body of elongate shape and comprising a longitudinal end for connection to said tool or to at least one cartridge of said tool, said body comprising at least one internal longitudinal duct for the passage of resin, wherein said nozzle comprises mechanisms for cleaning said hole by brushing and/or injection of air.

A tool for injecting chemical anchor resin into a hole in a wall, comprising a main handgrip for holding the tool, a trigger for operating at least one function of the tool, and a member of elongate shape intended to be inserted into a hole in the wall, said tool being equipped with a depth stop intended to bear against the wall, wherein the depth stop is situated at a free longitudinal end of a piston rod of a linear actuator of the tool and in that the tool further comprises actuator control mechanism(s) configured to vary the deployed length of said piston rod while the tool is in operation.

A metal detector 20 includes a cover 25, a detection signal acquisition unit 31, a determination unit 32, a display unit 24, and a display control unit 34. The cover 25 is removably attached to a tip portion 18 of a handheld power tool 10. The detection signal acquisition unit 31 acquires a detection signal that changes according to the detection strength of rebar W1 in concrete W. The determination unit 32 determines the presence or absence of the rebar W1 on the basis of the acquisition result acquired by the detection signal acquisition unit 31. The display unit 24 displays the presence or absence of the rebar W1 by lighting lamps in different colors. The display control unit 34 controls so as to switch the color of the light displayed on the display unit 24 on the basis of the determination result by the determination unit 32.

A protection tool for an electronic drill provides various functions when drilling is carried out. The electronic drill has a front end with a through hole located at the front end and a drill head extending through out the through hole. The protection tool is moveably mounted at the front end of the electronic drill along an operation direction. A guard plate includes a pore aligning with the through hole and provides pass way for the drill head. A supporting frame is assembled with the guard plate and is moveably mounted at the front end of the electronic drill along the operation direction, so that the guard plate is positioned at a variable distance from the front end according to the movement of the supporting frame with respect to the front end.

The present invention includes methods and apparatus for controlling the abrasion of a tire surface. Particular embodiments provide an abrading tool for abrading a surface of a tire, the tool comprising means for rotating an abrading wheel, an abrading wheel rotatably attached to the means for rotating, and a depth guide secured to the means for rotating, wherein the depth guide includes a pair of freely rotatable, spaced apart guide wheels. Further embodiments include a depth guide configured for use with an abrading tool which includes a abrading wheel and a means for rotating the abrading wheel, the depth guide comprising a mounting member securable to the means for rotating and a pair of freely rotatable, spaced apart guide wheels rotatably attached to the mounting member. Particular embodiments further include a method for preparing a portion of a tire for repair.

A rotary hammer tool can include a housing, a first motor supported by the housing, a spindle rotated by the first motor, a second motor supported by the housing, and a reciprocation mechanism reciprocated by the second motor. The reciprocation mechanism can include a piston driven to reciprocate within the spindle and a striker to reciprocate within the spindle in response to reciprocation of the piston. The rotational speed of the spindle and a reciprocation frequency of the reciprocation mechanism may be independently controllable.

An electronic drill with revolving replaceable drilling heads includes a housing, a driving unit, a rotary cover, and a plurality of drill heads. The housing has an opening, a through hole, a containing room connected therebetween. A motor container is disposed within the containing room to contain a motor of the driving unit. The rotary cover is assembled to the housing and is rotatable so that the plurality of drill heads coupled to the rotary cover is moveable freely in a rotary track between the motor container and the housing. One of the drill heads may be rotated to be aligned with a rotary hole of a gear set driven by the motor and pushed forward for use. The drill head can also be retracted backward and replaced in the electronic drill by rotating the rotary cover, so that another drill head can be pushed outward for use.

A portable machine tool, in particular a hand-held planing machine, includes at least one workpiece positioning unit and at least one insert tool unit. The at least one workpiece positioning unit has at least one workpiece positioning surface. The at least one insert tool unit projects at least partially over the at least one workpiece positioning surface in order to permit processing of workpiece. The portable machine tool further includes at least one adjustment unit that is configured, in at least one state, to set at least one orientation of one or more of the insert tool unit and the workpiece positioning surface relative to one another.

A manual drilling apparatus equipped with a device for control of advance, which includes a fixed part and a mobile part with movement of translation relative to the fixed part during the drilling, as well as a system for control of the movement of translation of the mobile part relative to the fixed part, wherein the fixed part and the mobile part comprise respectively at least one fixed tube and at least one mobile tube which slide relative to one another, the fixed and mobile tubes being coaxial to the axis of rotation of the tool supported by the apparatus.

The rotary knife for cutting trimmings from a material includes a frame, a blade housing, an annular blade, and a trimming deflection element. The annular blade is rotatably supported on the blade housing for rotation about a rotational axis. The annular blade defines an outer circumferential margin. The trimming deflection element is coupled to the frame. The trimming deflection element extends radially from a location within the outer circumferential margin of the annular blade to at least the outer circumferential margin, such that the trimming deflection element is configured to direct trimmings radially outward relative to the rotational axis.