Patent ID: 7444905
Filing Date: 2008-11-04
Classification: B25B,B25G

Abstract:
1. A wrench comprising a head portion, a handle portion, and a neck portion between the head portion and the handle portion, with the head portion being solid, with the handle portion being hollow and including a front portion contiguous to the neck portion, a rear portion adapted to be gripped by a user and a necking portion between the front and rear portions, and with the front portion having a wall thickness greater than that of the rear portion, and with the necking portion having a wall thickness greater than that of the rear portion and smaller than that of the front portion; wherein the rear portion of the handle portion includes an open rear end defining a rear end opening, with an annular extension extending rearward from a circumference of the rear end and bent inwardly as to define a hole; wherein the front portion, the neck portion, the rear portion and the rear end of the handle portion are integrally formed as a single and inseparable component of a same material.