是0.8号0.147 mm。

ygk各线号线径:0.2号0.074 mm,0.3号0.091 mm,0.4号0.105 mm,0.6号0.128 mm,0.8号0.147 mm,1.0号0.165 mm,1.2号0.181mm,1.5号0.205 mm,2.0号0.234 mm,2.5号0.261 mm,3.0号0.286mm