... cutting tools in China, Annular cutter (core drill) is the very product developed and produced by our company. Annular ... , aluminium, cast iron, stainless steel and plastic. 5. The specifications from the Φ12mm to Φ65mm, depth of cut from25mm, 35mm, ... TiAIN coating are available upon request. The information of packingMain marketOur main market: Europe,America and other states also have our customers ...