Ostar Tools Co., Ltd. is located in Shanghai City. We were established in 2003, as one of the leading manufacturers of hole saws and exporters of different cutting tools in China. Our partners and customers include the most famous companies around Europe, America, East Asia, and Australia. Ostar's business is mainly involved in cutting tools for both industry and DIY use, including exporting qualified products from China, sourcing new products, making OEM design for our customers, and ...