I'll make my own tool root winding thread.If you use a heat shrink tube, this is it!POINT.1 : Because it uses a heat-resistant material , it is treated with a heat-shrinkable tube.Recommended for those who do.The material used for gloves for blast furnace work is used.POINT.2 : The strength is set to high strength assuming SW assist.Super convenient thread holder (thread clasp) included.