LHY整體直柄直槽絲錐● 特性：性價比高 高精度修復螺紋 軸承鋼材質(zhì) 鋒利耐用 鎖定立強 規(guī)格齊全 精工制作 高效率 使用廣泛 扭矩高 整體熱處理 高硬度 耐磨損 切削輕快 阻力小容屑空間大 實用性高 強度和韌性配合好 螺紋清晰●High performance-price ratio, high precision repair of threaded bearing steel, sharp, durable, locking strength, complete specifications, precision manufacturing, high efficiency, wide torque, high overall heat treatment, high hardness, wear resistance, light cutting Small resistance and chip space, large practicability, high strength and toughness, well matched with clear threads