Higher accuracy, and more durable
It is suitiable for processing iron, steel, copper,aluminum, die steel and stainless steel.
Having a good applicability, stability, processing efficiency, life expectancy and so on.
High hardness, high wear resistance, for stainless steel, iron and other drilling. @@@Alloy tool steel screw tap bits are long lasting and good abrasion resistance.
Standard thread distance design, clear and tidy, no burr.