A concrete nailer has a cutout defined by a magazine. The cutout is disposed proximate the drive track of the concrete nailer and provides the concrete nailer with sufficient reach to perpendicularly nail a complete range of U-shaped channels or track available to the job site against concrete, even though the magazine accommodates both long and short nails. The concrete nailer has the added ability to nail thick boards like 24's to concrete.

A handheld tool includes a nose portion having an injection passage for a fastener, a magazine accommodating the fastener and located in a direction intersecting with the injection passage, a magazine cap portion opening and closing the magazine by a tip portion rotating in a direction separating from and approaching the magazine with a base end portion as a fulcrum, and a door portion rotatably coupled to the tip portion via a coupling shaft. The nose portion includes an engaging portion engageable with the door portion. The door portion is configured to, in a state where the magazine cap portion is opened, bent toward the magazine with the coupling shaft as a fulcrum, and in a state where the magazine cap portion is closed, extend linearly and engage with the engaging portion.

A tool device comprises a first module and a second module that can be detached from the first module, the first module having a receptacle and the second module having an insertion part that can be inserted in the receptacle along an insertion axis. The insertion part can be rotated in the receptacle about the insertion axis between a locked position and an enabled position, the receptacle having a first projection and the insertion part having a second projection. In the locked position, the second projection engages behind the first projection in the direction of the insertion axis, and in the enabled position, the first projection enables the second projection to pass in the direction of the insertion axis, the receptacle preventing an activation of the tool device in an initial position and allowing activation of the tool device in a pressed-on position.

Provided is a working machine with improved durability. A nail driver (working machine) includes a hitting portion that is formed in a rod shape extending about an axis line, an injection portion that abuts on an outer peripheral surface of the hitting portion, thereby guiding a movement of the hitting portion toward one side in the axial direction, and a supply portion that energizes a fastener toward one side in a direction intersecting with the axial direction, thereby supplying the fastener to the injection portion. The hitting portion has a tip part, and a center part provided at a position different from that of the tip part in the axial direction. At least a part of an outer peripheral surface of the tip part (tip part outer peripheral surface) on an anti-feeder side with respect to the axis line protrudes from an outer peripheral surface of the center part (center par outer peripheral surface) on a supply portion side with respect to the axis line.

A replaceable positioning tip can be removably fixedly coupled to a distal end of the trip arm. The positioning tip can define a tip nail guide groove having a proximal portion extending at a first angle substantially parallel to a nail driver axis and a distal end tapering at a second angle. The tapered distal end can be encompassed by a thin-walled portion. A nail tip lifter can be coupled to the rear nail guide housing for pivotable movement between a first position adjacent the positioning tip and a second position away from the positioning tip. The nail tip lifter can define a lifter nail guide groove extending from its inception at a proximal end to a distal end. A biasing member can be positioned between the rear nail guide housing and the nail tip lifter to bias the nail tip lifter toward the first position.

A nail gun with a hidden nail head structure includes a gun body, a nail magazine, and a nail head located at the nail exit of the nail magazine. The nail magazine is a component for supplying nails, and the gun body is a component for striking nails. The gun body has a connecting part extending towards the nail exit. The nail head is fixedly connected to the nail magazine on both sides by fasteners, and the upper part of the nail head is fixed to the connecting part by fasteners, realizing the hidden installation of the nail head. By adopting an insertion-type installation method, the nail head is hidden, making the overall appearance of the nail gun more elegant and attractive, with convenient assembly and connection, a more stable structure, simplified nail head structure, more convenient processing of components, and reduced manufacturing costs.

A nail-driving tool has a working end with a front face. The working end defines a nail aperture that has an axis along which a nail driven by the nail-driving tool travels. A first guide is formed by a recess in the front face that is configured to align the nail aperture with a nailing strip of a siding component. The first guide engages with a surface of the siding component that is a set distance from the nailing strip. One or more protrusions extends outward from the front face and spaced from the nail aperture, the one or more protrusions being configured to be received within a nail-receiving slot of the nailing strip such that the nail aperture is aligned with the nail-receiving slot. The one or more protrusions and the axis are intersected by a line that is perpendicular to the axis.

A tool attachment device for assisting a power tool in performing nailing includes a shell assembly, a rocker, a connection device, a driving wheel, and a transmission assembly. A side of the shell assembly is formed with a hole passage. The rocker is partially placed in the hole passage and is rotatable in the hole passage. The connection device is connected to the rocker and rotates synchronously with the rocker. Nail feeding structures are formed on the driving wheel along a circumferential direction of the driving wheel. The transmission assembly is connected to the driving wheel and the connection device and is configured to drive the driving wheel to rotate unidirectionally. The transmission assembly is disposed between the connection device and the driving wheel.

A handheld tool includes a nose portion having an injection passage for a fastener, a magazine accommodating the fastener and located in a direction intersecting with the injection passage, a magazine cap portion opening and closing the magazine by a tip portion rotating in a direction separating from and approaching the magazine with a base end portion as a fulcrum, and a door portion rotatably coupled to the tip portion via a coupling shaft. The nose portion includes an engaging portion engageable with the door portion. The door portion is configured to, in a state where the magazine cap portion is opened, bent toward the magazine with the coupling shaft as a fulcrum, and in a state where the magazine cap portion is closed, extend linearly and engage with the engaging portion.

A nail gun includes a muzzle device, a cartridge device and a driving device. The muzzle device includes a safety member having an abutment end retractable when pushed. The cartridge device includes a stop member for blocking the drive stroke when a number of the nails is less than a predetermined number. The driving device includes a linking member co-movable with the safety member, and a trigger unit including a pivotable trigger, an inner arm co-movable with the trigger, and a switch member. When the switch member is at a sequential striking position and when the trigger is pivoted before a rearward movement of the linking member, the inner arm is withdrawn from a route of the rearward movement to avoid actuation of the drive stroke.