... cutting tools in China, Annular cutter (core drill) is the very product developed and produced by our company. Annular cutter ... , aluminium, cast iron, stainless steel and plastic. 5. The specifications from the Φ12mm to Φ65mm, depth of cut from25mm, 35mm, 50mm, 75mm ... .7. TiN or TiAIN coating are available upon request. The information of packingMain marketOur main market: Europe,America and other ...