螺丝刀是装配工人、电工不可缺少的工具,也是其它机加工操作者常备的工具。由于以前我国生产的小型螺钉头部绝大多数是单槽型的,因此,螺丝刀也基本是单刀口型的,近几年来十字槽型的螺钉逐渐增多,但是十字头的螺丝刀还很不普遍,我们设计制作了如图示的双头可换螺丝刀,使用方便,经济,而且可以提高工作效率。 Screwdrivers are an indispensable tool for assembly workers, electricians, and a standing tool for other machining operators. Due to the vast majority of small screw heads produced in China before the majority of single-slot type, therefore, the screwdriver is basically a single-blade type, in recent years the cross-shaped screw gradually increased, but the crosshead screwdriver is still not common, We designed and manufactured the double-headed screwdriver as shown in the figure, which is convenient and economical to use, and can improve work efficiency.