... availableThe hss annular cutter has specifications of Φ12-100mm and 30, 50, 75, or 100mm DOC. apply ... to steel, cast iron, copper, aluminum, and FRP in either sheet or tubular forms.Suitable for ... drill e.g. Nitto, Hougen, Alfra, Rotabroach, and BDS, etc.WANSUI® annular cutters made of hardened ... Nitto, Alfra, BDS, Ruko, drilling rig and other magnetic drill machine.Also applies to all types of ...