A method for manufacturing hand tools, such as wrenches. The method generally includes the steps of providing a flat stock, cutting the flat stock into the desired two-dimension blank using a laser, and three-dimensionally machining the laser-cut 2D blank into the desired three-dimensional workpiece. The tool may undergo a heating treatment process and a surface treatment process. In the context of a wrench, the blank may be laser cut with a laser beam oriented to cut generally perpendicularly to the plane of the flat stock. After laser cutting, the handle and interface region between the handle and jaw(s) are machined to provide the desired three-dimensional shape. For example, the three-dimensional shape may be selected to provide a comfortable grip even when applying a high level of force. The wrench jaw may have an optimized geometry calculated so that there is no excess material or “over-designed” regions of the jaw. The wrench jaw has internal corners with optimized radii.

A method for manufacturing hand tools, such as wrenches. The method generally includes the steps of providing a flat stock, cutting the flat stock into the desired two-dimension blank using a laser, and three-dimensionally machining the laser-cut 2D blank into the desired three-dimensional workpiece. The tool may undergo a heating treatment process and a surface treatment process. In the context of a wrench, the blank may be laser cut with a laser beam oriented to cut generally perpendicularly to the plane of the flat stock. After laser cutting, the handle and interface region between the handle and jaw(s) are machined to provide the desired three-dimensional shape. For example, the three-dimensional shape may be selected to provide a comfortable grip even when applying a high level of force. The wrench jaw may have an optimized geometry calculated so that there is no excess material or “over-designed” regions of the jaw. The wrench jaw has internal corners with optimized radii.

An open-end wrench includes a handle and a movable jaw. The handle includes an open end formed with a root, a first stationary jaw extending from the root, and a second stationary jaw extending from the root. The movable jaw is connected to the second stationary jaw and moveable between an idle position and an active position relative to the second stationary jaw. The movable jaw includes an operative face that includes a first planar facet and a second planar facet extending at an angle relative to the first planar facet. The first and second planar facets are respectively in contact with two adjacent sides of a hexagonal head in the active position.

An open-end wrench includes a handle and a movable jaw. The handle includes an open end formed with a root, a first stationary jaw extending from the root, and a second stationary jaw extending from the root. The movable jaw is connected to the second stationary jaw and moveable between an idle position and an active position relative to the second stationary jaw. The movable jaw includes an operative face that includes a first planar facet and a second planar facet extending at an angle relative to the first planar facet. The first and second planar facets are respectively in contact with two adjacent sides of a hexagonal head in the active position.

An anti-slip torque tool that utilizes a plurality of grooves to prevent slippage and facilitate torque transfer to a fastener. The tool includes a wrench torque-tool body and an at least one engagement element. The wrench torque-tool body includes a plurality of internal sidewalls, a first base, and a second base. Further, each of the internal sidewalls includes a bracing surface. The engagement element includes a first pair of grooves and a second pair of grooves, wherein each further includes a primary cavity and a secondary cavity. The engagement element is laterally integrated into a specific sidewall to provide additional gripping action. The first pair of grooves and the second pair of grooves are positioned offset from each other, along the bracing surface of the specific sidewall. The primary cavity and the secondary cavity each traverse normal and into the bracing surface from the first base to the second base.

A wrench has a driving head segment defining a portion of a receiving space of the wrench and including a first driving side of the wrench. The driving side includes a plurality of driving sections for abutting against the object. The plurality of driving sections includes surfaces aligned along an axis. The driving side includes a plurality of first recesses disposed alternatively among the plurality of first driving sections.

An engagement structure for a tool contains: a drive member which includes an accommodation orifice, a hexagonal tooth portion, and six planes. A respective one of the six planes is arranged on a center of a respective one of six peripheral sides of the hexagonal tooth portion, and the two beveled rims extends from the two sides of the respective one plane and are connected with a first adjacent beveled rim of a first adjacent plane and a second adjacent beveled rim of a second adjacent plane. A ratio of lengths of the respective one plane, the first adjacent beveled rim and the second adjacent beveled rim is 2:1:2, and an angle between the respective one plane and each of the first adjacent beveled rims and the second adjacent beveled rim is 2 degrees.

An anti-slip torque tool with integrated engagement features includes a torque-tool body and a plurality of engagement features. The plurality of engagement features is radially distributed around a rotational axis of the torque-tool body. Each of the plurality of engagement features includes a first cavity surface, a first bracing surface, a second bracing surface, and a second cavity surface. The first bracing surface and the second bracing surface are adjacently connected to each other through an intersection point. The first cavity surface is terminally connected to the first bracing surface through a first connection point as the first bracing surface is positioned in between the second bracing surface and the first cavity surface. The second cavity surface is terminally connected to the second bracing surface through a second connection point as the second bracing surface is positioned in between the first bracing surface and the second cavity surface.

A fitting nut made of a resin material includes: a hollow, large-diameter tube portion having a female thread formed on its inner peripheral wall; and a small-diameter tube portion that is continuous to the large-diameter tube portion and having a hollow cylindrical shape with a smaller diameter than the large-diameter tube portion. The small-diameter tube portion includes, in the outer peripheral wall thereof, a plurality of engagement grooves that are depressed inwardly in the diameter direction of the small-diameter tube portion and extend along the longitudinal direction that is orthogonal to the diameter direction.

A display structure for a wrench includes a handle which includes a mirror surface or a matte surface. At least one display area is formed in the handle and is a recessed area in which at least two embossed areas and at least one blank area are formed. At least one display portion is formed within the at least one display area. The at least one display portion has a colored area formed on the top thereof, so that the at least one display portion has a color that is different from that of the body of the wrench.