Diamond Finger Milling Bits 20 50mm Beveling Chamfer for Shaping Trimming Enlarging Grinding Existing Holes in Ceramic Tile Porcelain Granite Marble M14 Thread SANLEETEK

【Specifications】Diameter 20-50mm; Total length 67mm; Working length 57mm; Diamond GrIt #50/60; Chamfer Angle: 60 degrees 【Application】Desinged to enlarge, shape, grind and round bevel existing holes in Ceramic Tile Porcelain Granite Marble. Dry or wet use 【High Performance】High-quality Diamond Grain and Vacuum Brazed Technology provide much longer working life, high efficiency, durable and sturdy 【Unique Detail】The special design of grinding rod and chamferer integration can meet various needs, ease chamfering and smooth rough holes 【Attention】The Bits can NOT be used to directly drill holes. It fits on M14 Thread Angle Grinder. Very easy to operate. Recommended speed 6000RPM, maximum speed 11000RPM