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

【Specifications】Diameter 0-20mm; Total length 60mm; Working length 50mm; Diamond GrIt #80/100,#50/60; Chamfer Angle: 53 degrees 【Application】Desinged to enlarge, shape, grind and round bevel existing holes in Tile Porcelain Ceramic 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 chamferer and grinding rod integration offers easy chamfering, smooth holes, and higher processing efficiency 【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