KATSU Diamond Finger Bit 30mm M14 Thread Vacuum Brazed Milling Reamer for Enlarging and Shaping or Round Bevel Existing Holes in Porcelain Hard Ceramic Granite Marble

1PC 30mm Vacuum Brazed Diamond Milling Finger Bit, Total Length: 70mm, Working Depth: 50mm, Grit: 70/80#. Thread M14, for using with Angle Grinders. Vacuum brazed diamond technology, stronger and more uniform layer of diamonds for enhanced performance and longer tool life. Faster working speed, high efficiency with water outlets designed to facilitate heat dissipation and sewage discharge. Designed to enlarge, shape, polish, clean, trim, finish, round or bevel existing rough holes of marble ceramic porcelain tiles granite stone. Can be wet or dry use and very useful to improve the edge processing of exposed holes. Used with electric or cordless angle grinders. Please Noted: Not for hole drilling. Great for plumbers, other conduits, tile Installers or setters, contractors, electricians wireman or DIY users.