Yangzhou shiwei hardware tools co.,ltd. is located in thebeautiful ancient city of yangzhou. Our corporation was established in the beginning of 1980's, specialized in the manufacture of cutting tools, whole tools, hardware ect.
They have kept fine quality and enjoyed a good reputation among users both at home and abroad.
Designed for cutting parallel holes in sheet metal and offer various hole drilling sizes from one bit. The maximum material thickness is determined by the length of the step on each tool