A tool assembly includes a handle and a connection end which is connected to the handle by way of blow molding or ultra-sonic fusion. The connection end can be made by plastic injection molding. The handle can be made by way of blow molding. The connection end has a slot defined axially therein. A blade includes a body and a toothed portion. The toothed portion of the blade is connected to the slot of the connection end. The toothed portion is inserted into the slot of the connection end when the connection end is molded by way of blow molding so that the toothed portion of the blade is connected to the slot of the connection end. The toothed portion has multiple teeth and each tooth includes an inclined edge tapered toward the downward toward the connection end.

A knife with a hidden tang, and a computerized method selecting the pre-fitted knife parts and assembling them into a customized knife product, based on the consumer's selections including use of a natural material for the knife handle, but without the need for grinding, polishing or processing the pre-fitted parts after assembly.

A knife assembly utilizing a rounded filet surface and a hidden tang for the precise fitting and connection of a butt of a knife tang, handles and a cylindrical back surface of a generally cylindrical blade bolster. A method of assembly of a knife with a hidden tang, using a larger diameter channel in the handle and providing specific geometric requirements for the components in order to accomplish a more precise fit of the pre-ordered components.

A drain cleaning apparatus includes a handle and a clog-catching member detachably connected to the handle. Wings, barbs or hooks project radially from the clog-catching member. The wings, barbs or hooks provide an angled projection that catches and holds a clump of debris in a drain pipe for pulling the clump out and unclogging the drain. Different end tools can be removably connected to a clog-catching member or to a smooth extension member to provide multifunctionality. The handle, clog-catching members, smooth extension members and tools can be connected together using a quick-connect connector, such as a snap fastener, a keyhole fastener or a side-release buckle, or a threaded connector. In addition to drain cleaning, the apparatus can be fitted with tools such as a magnet, grabber, light, camera and/or video for retrieval of objects and inspection of a space that is difficult to view directly.

A drain cleaning apparatus includes a handle and a clog-catching member detachably connected to the handle. Wings, barbs or hooks project radially from the clog-catching member. The wings, barbs or hooks provide an angled projection that catches and holds a clump of debris in a drain pipe for pulling the clump out and unclogging the drain. Different end tools can be removably connected to a clog-catching member or to a smooth extension member to provide multifunctionality. The handle, clog-catching members, smooth extension members and tools can be connected together using a quick-connect connector, such as a snap fastener, a keyhole fastener or a side-release buckle, or a threaded connector. In addition to drain cleaning, the apparatus can be fitted with tools such as a magnet, grabber, light, camera and/or video for retrieval of objects and inspection of a space that is difficult to view directly.

A knife with a hidden tang, and a computerized method selecting the pre-fitted knife parts and assembling them into a customized knife product, based on the consumer's selections including use of a natural material for the knife handle, but without the need for grinding, polishing or processing the pre-fitted parts after assembly. A knife assembly utilizing a rounded filet surface and a hidden tang for the precise fitting and connection of a butt of a knife tang, handles and a cylindrical back surface of a generally cylindrical blade bolster. A method of assembly of a knife with a hidden tang, using a larger diameter channel in the handle and providing specific geometric requirements for the components in order to accomplish a more precise fit of the pre-ordered components.

A hand tool comprising a head portion, a shaft, and a grip component is provided. The grip component and the shaft form a handle of the hand tool. The grip component is a reverse-molded component formed by: forming the external portion of the grip component by molding a first thermoplastic elastomer (TPE) material or thermoplastic urethane (TPU) material into a shell that surrounds a first cavity; after forming the external portion; placing the shaft into the first cavity; and, after the external portion is formed and the shaft is placed into the first cavity, forming the inner portion of the grip component by injecting a second TPE material or TPU material into the first cavity and onto the shaft. The first TPE or TPU material has a first level of hardness, and the second TPE or TPU material has a second level of hardness lower than the first level.

The present invention relates to a hand tool, comprising a tool member, of a first material, an elongated shaft, of a second material and a connecting member, of a third material comprising plastic. The elongated shaft further comprises a handle portion in a first end and an insert portion in a second end. The hand tool further comprises a sealing ring arranged to surround the insert portion to prevent leakage of the third material during manufacturing. A manufacturing method for such a hand tool is also presented, said method comprising arranging a sealing ring around an insert portion, arranging the insert portion and a tool member in a mold, injecting material comprising plastic in a cavity space so as to form a connecting member and removing the hand tool from the mold.

The present invention relates to a hand tool, comprising a tool member, of a first material, an elongated shaft, of a second material and a connecting member, of a third material comprising plastic. The elongated shaft further comprises a handle portion in a first end and an insert portion in a second end. The hand tool further comprises a sealing ring arranged to surround the insert portion to prevent leakage of the third material during manufacturing. A manufacturing method for such a hand tool is also presented, said method comprising arranging a sealing ring around an insert portion, arranging the insert portion and a tool member in a mold, injecting material comprising plastic in a cavity space so as to form a connecting member and removing the hand tool from the mold.

An electrical wire outer coating splitting device featuring an elongated sleeving element, a nearly as long closed hole space within the sleeving element and having a vertically inclined central axis of symmetry and with the notch portion thereof cut into the outer walling of the sleeving element at a bias relative to the lie of the axis of symmetry and with the notch portion thereof being further amenable to removable receipt and dependable holding of the body portion of a seam ripper element.

An electrical wire outer coating splitting device featuring an elongated sleeving element, a nearly as long closed hole space within the sleeving element and having a vertically inclined central axis of symmetry and with the notch portion thereof cut into the outer walling of the sleeving element at a bias relative to the lie of the axis of symmetry and with the notch portion thereof being further amenable to removable receipt and dependable holding of the body portion of a seam ripper element.