Abstract: The invention relates to a hand-held machine (10) for removing a friction-welded element, having a head, from a component assembly, wherein the hand-held machine (10) comprises a machine housing (12) and a drive unit (14) which is received therein, wherein, furthermore, an attachment device (20) is provided which is connected to the machine housing, wherein the attachment device comprises, furthermore, a telescopic element (22) which has a first component (24), arranged free from movement relative to the machine housing, and a second component (26), arranged movably in the axial direction relative to the first component, wherein the second component is prestressed in the axial direction in the pressing direction against the machine housing; furthermore, the attachment device has a tool drive shaft (30) which is driven via the drive unit, wherein the tool drive shaft is mounted rotationally on the second component by a bearing element (38).

Abstract: The present invention generally relates to a metal sheet screw position template designed primarily for use with metal roofing and carports. Metal sheets are generally installed on a structure with screws. Location of those screws is important for proper fastening and the overall symmetrical appearance of installation. The invention provides a template that is placed on a standard metal sheet to locate the screw positions in a fast and symmetrical manner so as to speed the process of installation, while ensuring a very symmetrical screw pattern for the entire roof or carport.

Abstract: Cutting tool assemblies, end mills, and related methods are disclosed. In accordance with an implementation, a face mill includes a cylindrical body including a central bore, a plurality of face mill coolant passages fluidly coupled to the central bore, and a cutting face. The cutting face includes a plurality of radially spaced teeth and gaps between the teeth. Each face mill coolant passage includes an opening at a corresponding gap.

Abstract: An electrode plate molding device is disclosed, including a conveying mechanism, a cutting mechanism, a first detection mechanism, and a deviation rectification mechanism. The conveying mechanism is configured to convey an electrode plate strip. The cutting mechanism is arranged downstream of the conveying mechanism along a conveying direction of the electrode plate strip. The cutting mechanism is configured to cut the electrode plate strip to form an electrode plate. The first detection mechanism is located upstream of the cutting mechanism along the conveying direction. The first detection mechanism is configured to detect a location of the electrode plate strip along a width direction of the electrode plate strip. The deviation rectification mechanism adjusts relative locations of the electrode plate strip and the cutting mechanism along the width direction in response to a detection result of the first detection mechanism.

Abstract: A hand-held circular saw includes a housing in which a drive motor for rotatably driving a circular saw blade is disposed, and also includes a handle which is disposed on the housing and on which a hanging device having a rotation axis portion and a hook element is disposed. The hook element is disposed perpendicular to the rotation axis portion. The rotation axis portion forms an axis of rotation and is rotatably mounted on the housing. The hook element can pivot about the axis of rotation in an associated plane. The associated plane is aligned parallel to a center of gravity plane of the hand-held circular saw.

Abstract: A reciprocating power tool includes a housing; a power assembly including an electric motor; a transmission assembly connected to the power assembly; a reciprocating assembly connected to the transmission assembly, performing a reciprocating motion, and mountable with a working accessory for an operation; and a balancing component for balancing a motion of the reciprocating assembly. A maximum distance the centroid of the reciprocating assembly moves is a first distance L1; a maximum distance the centroid of the balancing component moves is a second distance L2; the mass of the reciprocating assembly is a first mass M1, and the mass of the balancing component is a second mass M2; the ratio of a product M2·L2 of the second mass M2 and the second distance L2 to a product M1·L1 of the first mass M1 and the first distance L1 is greater than 1.05.

Abstract: A blade for a reciprocating saw includes: an elongated body having one end that is detachably attachable to the reciprocating saw; and at least one hard tip having a greater hardness than the body and being bonded to the body. The body includes a cutting edge part having a plurality of teeth arranged along the length direction and a back part extending along the length direction on the side opposite to the cutting edge part in a width direction. The cutting edge part includes at least one curved part. The curved part(s) is (are each) configured so that a cutting edge line, which is a line connecting the tips of a plurality of teeth disposed along the curved part(s), curves in a concave manner toward the back part. The at least one hard tip is bonded to at least one of the plurality of teeth.

Abstract: A control unit for executing a control method for controlling a wire electrical discharge machine includes a machining control unit for carrying out first machining on a first machining object, suspending the first machining if an interruption is necessary, carrying out second machining on a second machining object, and resuming the first machining after the second machining ends; a timing unit for timing a first period from the start to the suspension of the first machining, and a second period from the resumption to the end of the first machining; and a machining time calculation unit for calculating a first total time required for the first machining.

Abstract: A method of joining a first component and a second component includes providing the first component including a first surface; providing the second component including a second surface; creating a braze joint between the first and second surfaces using a sinker electrical discharge machining (EDM) device, where the first component is used as an electrode of the sinker EDM device and a voltage is generated between the first and second components such that the braze joint is created by spark erosion of at least one of the first component and the second component; and coupling the first and second components securely together along the braze joint.

Abstract: A surface treatment method. Atmospheric plasma is provided, and an object to be treated is placed in an atmospheric plasma atmosphere, wherein a residual oxygen level in the atmospheric plasma atmosphere is lower than a pre-set value. A soldering process is integrated into an atmospheric plasma treatment system without any flux protection, and it is ensured that the oxygen level in the atmosphere is reduced to an extremely low level, which can meet the high requirements for surface soldering performance.

Abstract: A solder jetting head for depositing a solder paste onto a target surface is provided. The solder jetting head comprises: a tappet portion driven to provide a striking force; a nozzle portion for forming an enclosing contact with the tappet portion, the nozzle portion being configured to force the solder paste to exit from the nozzle portion; a support portion for supporting the nozzle portion; and a buffering portion positioned between the support portion and the nozzle portion, the buffering portion being configured to absorb impact energy generated when the enclosing contact is formed.

Abstract: A solder jetting head for depositing a solder paste onto a target surface is provided. The solder jetting head comprising: a tappet portion driven to provide a striking force; and a nozzle portion for forming an enclosing contact with the tappet portion, so as to force the solder paste to exit from a nozzle opening of the nozzle portion, wherein the nozzle portion and the tappet portion are configured to have a sharp-edge contact with each other when forming the enclosing contact.

Abstract: A method for controlling a welding robot or a control device relating to GMAW when a groove is provided in a material being welded, the compositions of the material being welded and a welding wire are different from one another, and the welding wire contains 5% or more of Ni, the method having: setting execution information that includes at least one from among the plate thickness, the groove depth, and the estimated welding metal height, as well as at least one from among the gap size and the groove width in a central position at a layer height calculated in advance; and calculating a weaving width before or during welding on the basis of the execution information and setting or correcting welding conditions including at least the weaving width.

Abstract: A welding network includes processing electronics responsive to a welding scene for providing information related to the welding scene.

Abstract: Disclosed example power supplies, user interfaces, and methods provide for monitoring, analysis and/or presentation of input power characteristics for a welding-type power supply and/or wire feeder. A welding system includes a power supply to deliver power to a welding torch based on one or more input power characteristics. The input power characteristics may correspond to received input power characteristics values during a welding procedure. The input power characteristics are responsive to the power demanded during the welding operation and may change accordingly. To maintain an accounting of the input power characteristics and their values as they change during the welding operation, control circuitry may receive information regarding the input characteristics, analyze the information, and/or generate presentable indicators for display on one or more graphical interfaces.

Abstract: A chip collection system includes a tip dresser that cuts a distal end of an electrode tip for spot welding, and a suction unit that sucks and collects chips (M1) produced when the distal end of the electrode tip is cut with the tip dresser. The suction unit includes an electric motor (6) being rotatable, a centrifugal impeller (5) rotatable by the electric motor (6) to generate a suction force, and a chip collection case (9) into which the chips (M1) are collectable. The suction unit collects chips (M1) moving with air sucked in response to rotation of the centrifugal impeller (5) into the chip collection case (9).

Abstract: A friction stir welding (FSW) tool includes a pin configured to extend through a joint line between edges of two work pieces and to rotate to perform a FSW process that welds the two work pieces together at the joint line. A housing is coupled to a distal end of the pin to enable rotation of the pin relative to the housing. The housing includes a main body having one or more cooling channels having one or more arcuate segments. One or more sliders are coupled to the main body of the housing.

Abstract: The present invention teaches an apparatus and method for line-illumination temporal focusing three-dimensional (3D) nano-fabrication, the apparatus and method comprising: a laser source (110) configured to emit a laser beam (111); a line-illumination pattern unit (150) forming a pre-determined line pattern from a line-shaped beam; a data acquisition unit (120) receiving input and transmitting output signals for movement synchronization of multiple devices; an optical imaging device (130) configured to monitor fabrication process in real time; a controller unit (140); and a substrate plane (170).

Abstract: An apparatus is described for processing an object by laser, comprising a support base comprising a treatment area for the object, a laser, a stand mounted on the base to keep the laser at a distance from the base and pointed at the treatment area, and a casing or cover to enclose the stand and the laser. To reduce the size, there are means for lifting the casing or cover from the base to a raised position where access to the treatment area is permitted, and means for rotateing the casing or cover around a—in use—horizontal axis while the casing or cover is in the raised position.

Abstract: A continuous laser processing system for internal modification of transparent materials includes a pulse laser device, a scanning device, a processing platform and a control device. The pulse laser device is configured to output a laser beam. The scanning device includes a mirror group controller and a mirror group and controlled to guide the laser beam to the transparent material, wherein the mirror group is disposed at an output path of the laser beam. The processing platform is configured to carry the transparent material and controlled to move. The control device is electrically connected to the scanning device and the processing platform, and is configured to control the scanning device to form a processing trajectory at the transparent material at a scanning speed, and to control the processing platform to move at a translation speed, wherein the scanning speed is at least 20 times the translation speed.

Abstract: A semi-closed local low-vacuum laser welding device and welding method is provided. The semi-closed local low-vacuum laser welding device includes a local low-vacuum cabin, a dynamic sealing structure, a mechanical pump, and a laser welding mechanism. The local low-vacuum cabin includes a primary vacuum chamber, a secondary vacuum chamber and a tertiary vacuum chamber which are arranged in sequence, and a plate to be welded is arranged at a bottom of the primary vacuum chamber. The dynamic sealing structure is arranged at the bottom of the primary vacuum chamber, and the dynamic sealing structure is configured for connecting the primary vacuum chamber with the plate to be welded. The mechanical pump is in communication with the primary vacuum chamber and the secondary vacuum chamber. The laser welding mechanism is arranged corresponding to the local low-vacuum cabin, and is configured for welding the plate to be welded.

Abstract: The underlying invention is in particular related to a method of manufacturing a multi-component part (1) of a cooking and/or household and/or kitchen appliance. the multi-component part (1) comprising a first component (2) and a second component (3) wherein the first and second components (2.3) are interconnected by a substance-to-substance bond (4).

Abstract: A method laser cuts and laser pre-welds a stack of metal foils in a single laser process. The method includes clamping together the stack of metal foils, and irradiating the clamped stack with a laser beam to complete a cut through the entire stack and, while cutting the stack, form a weld joint joining the metal foils together at the cut. Subsequently, the cut and pre-welded stack of metal foils may be laser welded to a metal substrate that is significantly thicker than individual foils. The method may be applied to stacks of anode and cathode foils in electrochemical batteries, such as lithium-ion batteries.

Abstract: A powder bed fusion additive manufacturing method including exposing layers of a powder bed to an energy beam to selectively melt at least one area of each layer, wherein the energy beam is progressed along a scan path to melt material of the at least one area using a pulsed exposure. Initial and/or end pulses of the pulsed exposure may have a shorter pulse duration than a pulse duration of a mid-pulse between the initial and end pulses.

Abstract: Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of preparing photonic integrated circuits (PICs). Specifically, the method include coupling a dicing tape to a first side of a wafer. The method also includes performing a first laser processing step to form a modified layer by applying at least one laser beam of a wavelength that has transmissivity through the wafer along a first projected dicing line to define a first facet and performing a second laser processing step to form the modified layer by applying the at least one laser beam to the wafer along a second projected dicing line to define a second facet. The method further includes expanding the dicing tape to divide the wafer from the modified layer along at least the first projected dicing line and the second projected dicing line into PIC chips.

Abstract: A laser processing apparatus includes a support portion, a first laser processing head, a second laser processing head, a first vertical movement mechanism, a second vertical movement mechanism, a first horizontal movement mechanism, a second horizontal movement mechanism, and a controller configured to control rotation of the support portion, emission of a first and a second laser lights from the first and the second laser processing heads, and movement of a first and a second focusing points.

Abstract: A welding consumable includes a metallic core, and a flux coating surrounding a portion of the metallic core. The flux coating includes a reduced manganese content, which results in a significant reduction of manganese in the weld fumes formed when the welding consumable is consumed in an arc welding process.

Abstract: An automatic supply system of a terminal assembly for a hair pin type stator supplies the terminal assembly to a welding unit welding the stator coil and terminal assembly of the hair pin type stator to each other. The system includes: i) a conveyor unit transporting a terminal supply box storing the plurality of terminal assemblies along a set transport path; ii) a terminal supply robot gripping or releasing at least one terminal assembly of the plurality of terminal assemblies, and loading or unloading the at least one terminal assembly at a set location; and iii) a terminal alignment unit aligning the at least one terminal assembly loaded at the set location by the terminal supply robot.

Abstract: A gantry system for manufacturing a wind turbine blade is provided, the gantry system including a frame for bridging the wind turbine blade in a cross-section direction of the blade during manufacture, wheels rotatably attached to the frame for locomotion of the gantry system, and one or more robotic units attached to the frame for performing manufacturing steps for manufacturing the blade. Having the gantry system bridging the wind turbine blade in a cross-section direction of the blade during manufacture provides a stable vehicle with a large footprint for manufacturing a wind turbine blade.

Abstract: A magazine for holding a plurality of workpieces in a workpiece machining process having a flat tray which includes a first pair of mounting rails running along a first direction and a second pair of mounting rails running along a second direction perpendicular to the first direction. The magazine has a plurality of first bounding elements positionally displaceable and fastened to the mounting rails of the first pair with their longitudinal direction running in the second direction and a plurality of second bounding elements positionally and fastened to the mounting rails of the second pair in their longitudinal direction running in first direction. The mounting rails of the first and second pairs and the first and second bounding elements coordinate with one another such that regardless of arrangement and positioning first and second bounding elements are arranged on and fastened to one of first or second pairs of mounting rails.

Abstract: The disclosure includes a protective device for a machine, a method of operating a protective device, and a protective system including the protective device and the machine. The protective device may include a sensor array disposed on the machine. The sensor array may have a plurality of time-of-flight (TOF) sensors arranged to form a sensible field for TOF measurements, and a controller configured to define a safety area within the sensible field, detect an object within the sensible field, and generate a safety output that controls an operation of the machine in response to the object being detected within the safety area. The machine may include woodworking machines or other machines having debris or particles in the surrounding environment during operation.

Abstract: A cooling manifold assembly configured to deliver cutting fluid includes a manifold body with a coupling for fastening the manifold body to a non-movable portion of a device configured to hold and rotate a workpiece around a central rotational axis of a guide bushing or collet of the device, where the manifold body surrounds at least a portion of the central rotational axis. A first inlet is fluidly coupled to a first channel defined in the manifold body, and a plurality of first outlets of the manifold body are fluidly coupled to the first inlet such that the plurality of first outlets are configured to direct the cutting fluid at a plurality of positions around the central rotational axis at one or a plurality of discharge angles such that the cutting fluid contacts the workpiece and is transmitted away from the guide bushing or collet of the device.

Abstract: A machine tool with improved thermal stability includes a workpiece support for supporting at least one workpiece for allowing machining of the workpiece, and a support structure including a tool carrier support. The tool carrier support supports a tool carrier configured for carrying and driving a tool for machining a workpiece supported by the workpiece support through a relative movement between the workpiece and the tool. The machine has a conduit configured to allow the flow of air in a closed circuit, the conduit has a surface part and an underground part, the surface part being an inner cavity of the support structure and the underground part having a piping configured to be buried in the soil beneath the support structure.

Abstract: A measurement device includes: a sensor that acquires image information by imaging an object targeted for addition of materials or cutting; a measurement unit that acquires measurement data by measuring the shape of the object on the basis of the image information, the measurement data representing a shape of the object; a missing region detecting unit that detects a missing region of the object; a measurement data complementing unit that acquires re-measurement data by re-measuring the shape of the object on the basis of the image information which the sensor has acquired by re-imaging, and complements the measurement data with the re-measurement data; and a machining region specifying unit that specifies a machining region for the addition or the cutting, on the basis of the complemented measurement data and a model of a finished product obtained by the addition or the cutting.

Abstract: The invention relates to the technical field of wafer processing, and specifically discloses a wafer thinning system and a thinning method. The system includes a first transfer mechanism, a first conveying mechanism and a second transfer mechanism, as well as a rough grinding mechanism, a fine grinding mechanism and a detection mechanism disposed on the first conveying mechanism. The system further includes carrying mechanisms, a second conveying mechanism, and a controller. The controller is configured to control the first conveying mechanism to convey the carrying mechanisms and control the rough grinding mechanism, the fine grinding mechanism and the detection mechanism to sequentially perform rough grinding, fine grinding and thickness detection on the wafers. The system can implement rough grinding, fine grinding and thickness detection for the wafers, thereby implementing continuous thinning of the wafer and increasing the yield of wafer thinning.

Abstract: A method of manufacturing a wafer from a workpiece that has a first surface, a second surface positioned opposite the first surface, and a side surface joined to outer peripheral edges of the first and second surfaces, the first and second surfaces containing warpage, the method includes grinding the first surface of the workpiece while holding the workpiece on a first holding table such that the second surface faces the first holding table and the first surface is exposed, by gripping and securing the side surface of the workpiece with at least two fixing members of the first holding table without holding the second surface under suction on the first holding table, grinding the second surface of the workpiece, forming a peel-off layer in the workpiece, and peeling off the wafer from the workpiece along the peel-off layer that acts as peel-off initiating points.

Abstract: The disclosure relates to a tool interface device for an insertion tool for connecting the insertion tool to a tool holder of a machine tool, having at least one connection interface for connecting to a quick-release device of the tool holder, wherein the connection interface has a recess at least partially bounded by a boundary edge of the connection interface, and wherein the connection interface comprises at least one securing element at least partially forming the boundary edge. It is proposed that the connection interface comprises at least one tool mounting coding element spaced apart from the at least one securing element and at least partially forming the boundary edge and provided for interacting with at least one mounting coding element of the tool holder in a state of the connection interface arranged on the tool holder.

Abstract: A pad for performing abrasive-free chemical planarization of a substrate comprises a polymer layer configured to contact the substrate during the abrasive-free chemical planarization. The polymer layer comprises a cerium species.

Abstract: Methods for breaking-in new polishing pads of a double-side polishing apparatus for polishing substrates such as single crystal silicon wafers are disclosed. The methods may involve contacting the new polishing pads with a conditioning substrate such as a substate that includes diamonds at the surface of the substrate. Conditioning methods may also involve contacting the new polishing pad with sacrificial substrates.

Abstract: A modular clamp system includes at least one clamp having an L-shaped clamp body. The clamp body is defined by a first leg and a second leg, where the first leg includes a threaded bore extending therethrough, while the second leg includes a threaded channel in which a spring loaded retractable pin is retained. The clamp may further include a handle assembly having an adjustable threaded rod configured to travel back and forth through the threaded bore and to engage a workpiece. The handle assembly has a handle for rotating the handle assembly and may include a hex cap to interface with a drill or wrench. The clamp also includes a pair of spaced apart cleated feet for securing the clamp to a framing such as a half-slotted strut.

Abstract: A power tool comprising a housing, a motor disposed in the housing, a battery, a head coupled to the housing, a transmission, a shift actuator, and a spring lever. The housing includes a battery receptacle configured to receive the battery. The motor includes a motor shaft driven by the motor about a first axis. The battery powers the motor. The head containing a ratchet mechanism, which is configured to drive an output drive about an axis orthogonal to the first axis. The transmission is configured to transmit rotation from the motor shaft to the ratchet mechanism and is shiftable between a high-speed, low-torque configuration and a low-speed, high torque configuration. The shift actuator is positioned partially within the housing and is moveable along an axis parallel to the first axis. The spring lever is coupled to the head and transmits motion from the shift actuator to the transmission.

Abstract: A powered ratchet tool includes a handle housing, a motor disposed within the handle housing, the motor including a motor shaft rotatable about a first axis, a head extending from the handle housing, a ratchet mechanism supported by the head and including a crankshaft and a yoke coupled to the crankshaft such that the yoke is pivotable in a reciprocating manner in response to rotation of the crankshaft, an output drive coupled to the yoke such that the output drive is configured to rotate about a second axis perpendicular to the first axis in response to reciprocation of the yoke, and a coupling assembly coupled to the motor shaft and to the crankshaft such that the motor shaft and the crankshaft are coupled together for co-rotation about the first axis.

Abstract: A power tool includes a housing with a motor housing portion, a handle portion extending from the motor housing portion, and a battery receptacle configured to receive a battery pack. An electric motor is supported in the motor housing portion. A trigger extends from the handle portion. An actuator is located on a top surface of the housing opposite the battery receptacle and includes a magnet. A sensor is positioned adjacent the actuator to detect a position of the magnet and output an actuator signal representative of a position of the actuator based on the detected position of the magnet. A controller is configured to control the electric motor based on the actuator signal received from the sensor such that the electric motor rotates in a first direction when the actuator is in the first position and rotates in an opposite direction when the actuator is in the second position.

Abstract: Disclosed is a high-intensity magnetic tool extension rod. The high-intensity magnetic tool extension rod comprises an extension rod, magnets and magnetic conduction structures. The magnets are symmetrically distributed on a lateral part of the extension rod with an axis center of the extension rod as a center. The magnetic conduction structures are arranged on an axial side of the magnet. The magnetic conduction structures comprise a front magnetic conduction structure and a rear magnetic conduction structure which are respectively arranged on both sides of the magnet. The front magnetic conduction structure is arranged at an adapted tool head connecting end of the extension rod, and the rear magnetic conduction structure is arranged at a receiving tool-driven connecting end of the extension rod.

Abstract: An empty-firing prevention safety device for a nail gun includes: a gun body including an actuating space and a nail groove; a trigger, capable of being pressed, located in the actuating space; and a connecting rod pivoted to the gun body and capable of being moved between an actuating position and a locking position, and including: a sensing portion located in or away from the nail groove, and a limit portion located in the actuating space and facing the abutting portion, when the connecting rod is in the actuating position, the sensing portion moves out of the nail groove, the limit portion is misaligned with the abutting portion, allowing the trigger to be pressed, when the connecting rod is in the locking position, the sensing portion is located in the nail groove, and the limit portion is aligned with the abutting portion, so that the trigger cannot be pressed.

Abstract: A power tool includes an electric motor having a motor shaft and a fan assembly attachable to the motor shaft for rotation in a first rotational direction to generate an airflow for cooling the electric motor. The fan assembly includes a fan body, a bearing that rotates with the fan body, and a flywheel having a central portion that defines a central bore configured to receive the bearing so that the bearing is rotatably affixed to the flywheel. The power tool further includes a spring configured to receive torque from the electric motor such that the torque winds the spring to store energy when the electric motor is activated and release the energy to supply torque to the fan assembly so that the fan assembly continues to rotate and generate the airflow for cooling the electric motor when the electric motor is deactivated.

Abstract: A multi-function painting accessory includes a coupling member configured to be received on an end of an extension pole or paint roller, a scraper blade extending from the coupling member, the scraper blade having a distal edge for removing debris from a surface, and an opener device extending from the coupling member, the opener device being configured for use in removing a paint can lid or bottle top.

Abstract: Power tools described herein include an electric motor, a driver blade, a trigger switch, a safety switch, and an electronic controller. The electronic controller is connected to the electric motor, the trigger switch, and the safety switch. The electronic controller is configured to initiate a retraction cycle by controlling the electric motor to move the driver blade from a first position to a second position, determine a position of the driver blade during the retraction cycle, initiate, in response to the position of the driver blade exceeding a first threshold, a braking cycle at the electric motor, and abort, in response to detecting a first activation of the trigger switch and a second activation of the safety switch, the braking cycle.

Abstract: A power tool includes a locking mechanism for locking the output shaft when the output shaft transmits torque to the motor shaft. The locking mechanism includes a shaft lock bracket connected to the output shaft to drive the output shaft; and a damping assembly including a first mounting portion connected to the output shaft, a second mounting portion connected to the shaft lock bracket, and a buffer part. The buffer part connects the first mounting portion to the second mounting portion. When the output shaft and the shaft lock bracket move relative to each other, the buffer part undergoes the torsional deformation to provide a buffer force that delays the movement of the output shaft relative to the shaft lock bracket.

Abstract: A power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The power tool also includes trigger switch configured to activate and deactivate the motor. The power tool further includes a non-contact mode selector switch that is separate from the trigger switch and configured to adjust an operational mode of the tool. The non-contact mode selector switch is positioned in a foot of the handle portion opposite the motor housing portion.