攻牙标准参数表1

攻牙标准参数表丝功规格工件材质钻牙底孔径孔口倒角标准螺距备注英7/8不锈钢Ø19.03Ø23.962.822Ø22.22碳钢Ø18.6111不锈钢Ø21.79Ø27.113.175Ø25.4碳钢Ø21