Patent ID: 8656812
Filing Date: 2014-02-25
Classification: B25B

Abstract:
1. A pair of pliers comprising: a first arm and a second arm each having a jaw portion at a front end and a grip on a back end side, wherein said first and second arms are coupled through a coupling shaft in an X shape, flanks for preventing opposite corners of front ends of each of the jaw portions from coming in contact with a screw fastened face, wherein said flanks are formed on left and right sides of the front end of each of the jaw portions, longitudinal pinching teeth capable of pinching a peripheral face of a screw head while being orthogonal to the screw fastened face, wherein said pinching teeth are formed to be recessed in opposed faces of the respective jaw portions between the left and right flanks, and, wherein each of the longitudinal pinching teeth is formed by connecting, in shapes of peaks and troughs in a left-right direction, a plurality of streak teeth extending in a front-back direction, and, wherein the front ends of the flanks are located behind front ends of the streak teeth.