Danyang jiaheng tools Co.,Ltd is a leading manufacturer and exporter of drill bits in China, professional in all kinds of HSS twist drill bits, electric hammer drill bits, masonry drill bits, wood working drill bits, BI-metal hole saws, HSS taps etc. We are located in the city of Danyang with convenient transportation to Changzhou airport and the south of 101 Expressway. Both of its geographical advantage and cultural environment make it a star brand in the city.