1简介多功能螺丝刀造型新颖，美观巧妙，具有高效、省力的特点。它既改善了市场上电动螺丝刀的笨重和噪音，又弥补了自动螺丝刀的笨拙，粗细长短与普通螺丝刀一样，小巧玲政，不用电，不燃油，主轴输出转速与电动式相当．螺丝刀杆可随意更换，并能钻孔、安装三校依等进行旋转任 1 Introduction The multi-purpose screwdriver is novel in design, beautiful in appearance, and highly efficient and labor-saving. It not only improves the clunkiness and noise of the electric screwdriver in the market, but also makes up for the awkwardness of the automatic screwdriver. It is the same as a normal screwdriver. It is small and lean and does not require electricity or fuel, and the spindle output speed is comparable to that of the electric type. Screwdriver rods are free to be replaced, and can be drilled, installed, etc.