Wrench with quickly angularly adjustable handle

A wrench with quickly angularly adjustable handle, comprising ahead section and a handle, the head section and the handle being pivotally connected with each other via a first pivoted end and a second pivoted end, whereby the handle can be up and down angularly displaced relative to the head section;

• in a longitudinal direction of the wrench, the first pivoted end and the second pivoted end respectively having a first end face and a second end face facing each other, wherein:
• the first end face of the first pivoted end having an upper section and a lower section, the upper section being formed with an upper contact section, while the lower section being formed with a lower contact section;
• a first angle being contained between the upper contact section and the lower contact section;
• the second end face of the second pivoted end also having an upper section and a lower section, the upper section having an upper abutment section, while the lower section having a lower abutment section;
• a second angle being contained between the upper abutment section and the lower abutment section, the first angle being larger than the second angle;
• and
• when the lower abutment section of the second pivoted end abutting against the lower contact section of the first pivoted end serves as a lower dead end of angular displacement of the handle and when the upper abutment section of the second pivoted end abutting against the upper contact section of the first pivoted end serves as an upper dead end of angular displacement of the handle.