M14 thread brazed diamond chamfer tip conical chamfering grinding head diameter 48mm/1.89" Features: 1. Great for reducing the risk of cracking on standard and wide tiles under stress (e.g. pipes, LED lights, etc.), the bevels are easy to chamfer and stress relief removes rough holes on glass, ceramic and tiles. 2. Using hard alloy steel, heat treatment, high strength, nickel-plated surface, torsion-resistant alloy to ensure long service life. 3. Use a diamond hole saw or a diamond hole saw for a grinder. Specification: Name: Brazing Chamfer Material: diamond Thread: M14 Granularity: 80 Diameter: 48mm/1.89" Height: 50mm/1.97" Packing included: 1 * Brazing Chamfer Note: 1. Due to manual measurements and slight color variations, please allow 1-3 cm (0.4-1.18 inches) difference to suit different display settings. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.