A kind of carpenter's pincers of what is closed in this creation comprising first and second shank body and a pivot. The inwardly projecting first connecting portion in the front end of the leading portion of first shank body, first connecting portion are equipped with a long slot hole, and long slot hole includes first and second perforation separated and the connecting hole being connected between first and second perforation. The inwardly projecting second connecting portion in the front end of the leading portion of second shank body, second connecting portion are equipped with an at least pivoted hole. Pivot passes through pivoted hole and the long slot hole of first connecting portion of the second shank body in conjunction with by first and second interconnecting piece, so that first and second shank body can be relatively moved with the axis that pivot defines. Pivot has two opposite long side surfaces, and when two long side surfaces of pivot are aligned with two inner walls of connecting hole, pivot can move between first and second perforation of long slot hole； When two long side surfaces of pivot are not aligned with two inner walls of connecting hole, pivot cannot move between first and second perforation of long slot hole. Accordingly, the jaw size system of the carpenter's pincers can do two-part adjustment according to demand, be used with the suitable different size of English walnut of what本創作關於一種胡桃鉗，其包括第一與第二柄體及一樞軸。第一柄體的前段的前端向內凸出一第一連接部，第一連接部上設有一長槽孔，長槽孔包含分隔的第一與第二穿孔以及連接在第一與第二穿孔之間的一連接孔。第二柄體的前段的前端向內凸出一第二連接部，第二連接部設有至少一樞接孔。樞軸穿過第二柄體的樞接孔與第一連接部的長槽孔以將第一與第二連接部結合，使得第一與第二柄體可以樞軸所界定之軸線相對移動。樞軸具有相對的二長側面，當樞軸的二長側面與連接孔的二內壁面對齊時，樞軸可在長槽孔的第一與第二穿孔之間移動；當樞軸的二長側面與連接孔的二內壁面沒有對齊時，樞軸不能在長槽孔的第一與第二穿孔之間移動。據此，該胡桃鉗的鉗口大小係可依據需求做兩段式調整，以適於不同大小的胡桃使用
