Feature●[Features] Ultra-hard special tip & fluorine resin coding greatly reduces cutting resistance. The laser slit of the bond liquid container reduces vibration and has excellent silent effect●Model: YCSB-165-55●Outer Diameter: 6.5 inches (165 mm)●Blade thickness: 0.06 inches (1.5 mm)●Number of Blades: 55●Inner Diameter: 0.8 inches (20 mm)Description