Holder (1) for releasably connecting a handle to a tool (2), in which the holder (1) comprises a space (3) in which a handle end is introducible, in which this space (3) comprises a wall surface with one or more projecting cutting elements (5a, 5b) for cutting complementary screw thread by means of which the one or more cutting elements (5a, 5b) are releasably connectable, in which the holder (1) comprises a coupling portion (6) comprising the one or more cutting elements (5a, 5b) and a retaining portion (7), in which the coupling portion (6) is made of a first material comprising plastic and the retaining portion (7) is made of a second material, in which the hardness of the first material is greater than the hardness of the second material.

Holder (1) for releasably connecting a handle to a tool (2), in which the holder (1) comprises a space (3) in which a handle end is introducible, in which this space (3) comprises a wall surface with one or more projecting cutting elements (5a, 5b) for cutting complementary screw thread by means of which the one or more cutting elements (5a, 5b) are releasably connectable, in which the holder (1) comprises a coupling portion (6) comprising the one or more cutting elements (5a, 5b) and a retaining portion (7), in which the coupling portion (6) is made of a first material comprising plastic and the retaining portion (7) is made of a second material, in which the hardness of the first material is greater than the hardness of the second material.

A toilet brush assembly including a brush, including: a handle assembly including a handle assembly proximal end and a handle assembly distal end; and a brush head that includes a plurality of tufts of bristles disposed on an outer surface of the brush head, a cavity defined by an inner surface of the brush head, and a fastener portion. The toilet brush assembly also includes a base, including a cup for receiving the brush head. The brush head selectively couples to the handle assembly distal end at the fastener portion of the brush head at a handle assembly-brush head connection; and at least one of the base and the brush head define at least one interference feature formed from a surface of the base and that contacts the tufts of bristles when the brush head is in a rest position within the cup.

A toilet brush assembly including a brush, including: a handle assembly including a handle assembly proximal end and a handle assembly distal end; and a brush head that includes a plurality of tufts of bristles disposed on an outer surface of the brush head, a cavity defined by an inner surface of the brush head, and a fastener portion. The toilet brush assembly also includes a base, including a cup for receiving the brush head. The brush head selectively couples to the handle assembly distal end at the fastener portion of the brush head at a handle assembly-brush head connection; and at least one of the base and the brush head define at least one interference feature formed from a surface of the base and that contacts the tufts of bristles when the brush head is in a rest position within the cup.

A tool assembly includes an elongated handle and a locking system for attaching a tool head to the handle. The tool head can be a floor care tool or other accessory that can be attached to the handle such that the elongated length of the handle can aid in the use of the tool attached. The locking system includes a keyed locking collar for engaging at least a first portion of the tool head, and a locking cap rotatably positioned on the handle for engaging a second portion of the tool head. The handle can be extendable, such as by telescoping, and can also be overmolded.

A tool assembly includes an elongated handle and a locking system for attaching a tool head to the handle. The tool head can be a floor care tool or other accessory that can be attached to the handle such that the elongated length of the handle can aid in the use of the tool attached. The locking system includes a keyed locking collar for engaging at least a first portion of the tool head, and a locking cap rotatably positioned on the handle for engaging a second portion of the tool head. The handle can be extendable, such as by telescoping, and can also be overmolded.

A hammer (1) for use in shape processing of a silicon block is a hammer for crushing a silicon block so as to carry out shape processing with respect to the silicon block, the hammer including: a handle (10) made of a resin; and a hammer head (20) fixed to the handle (10).

A hammer (1) for use in shape processing of a silicon block is a hammer for crushing a silicon block so as to carry out shape processing with respect to the silicon block, the hammer including: a handle (10) made of a resin; and a hammer head (20) fixed to the handle (10).

Disclosed is a tool bar. The tool bar comprises a head part, a tail part, a pipe connection assembly, a backstop mechanism and a bushing member. The head part and the tail part are connected with each other by the pipe connection assembly. The bushing comprises a cone section and a cylinder section; one end of the head part passes through the cylinder section and connected to an inner thread of the cone section; the outer side of the cone section is configured to secure with a tool head; an external thread is provided on an outer surface of the cylinder section. The backstop mechanism comprises an intermediate member and a lock cap; the intermediate member is a hollow cylinder.

Disclosed is a tool bar. The tool bar comprises a head part, a tail part, a pipe connection assembly, a backstop mechanism and a bushing member. The head part and the tail part are connected with each other by the pipe connection assembly. The bushing comprises a cone section and a cylinder section; one end of the head part passes through the cylinder section and connected to an inner thread of the cone section; the outer side of the cone section is configured to secure with a tool head; an external thread is provided on an outer surface of the cylinder section. The backstop mechanism comprises an intermediate member and a lock cap; the intermediate member is a hollow cylinder.