https://woh.federatedjournals.com/carbide-end-mill-everything-you-need-to-know/ Changzhou Smart Source Precision Tools Co., Ltd, founded in January 2008, is a professional manufacturer of carbide end mills, Carbide drills and PCD/PCBN cutting tools. With an investment of more than 30 million yuan, it covers an area of 3300 square meters. There are 10 advanced grinders, helped with over 20 other equipment, operated by over 30 workers. We provide design products and a service set to satisfy all our clients.