Abstract: Provided is a tourniquet device including a belt body and a timer, wherein the timer includes: a housing having a plurality of bulges; a connecting component arranged on the outside of the housing to connect the belt body to the timer; and a timing unit and a warning unit, which are arranged inside the housing, wherein the belt body is clamped between the bulges and the connecting component. In the tourniquet device, the timer is small, simple to operate, and not easy to fall off from the belt body. In addition, the tourniquet device is suitable for users' conventional operation without undue difficulties in use.

Abstract: A pair of pliers has a body and two jaws. The body has two connecting sections and two handles. The jaws are detachably mounted on the connecting sections of the body, and each jaw has a working nose and a mounting section. The mounting section has a mounting hole formed in a bottom surface of the mounting section and corresponding to the connecting section of the body in the shape and having a circular hole with a depth D and a diameter R, an enlarged hole with a depth smaller than the depth D and an inner diameter larger than the diameter R at the circular hole and cutting chips deposited and accumulated in the circular hole and shaped as a hill with a convex top.