PFERD CBN Internal Bur 3mm Shaft 120 Blade Diameter 4.0mm BKU-A4.0-259085 1 piece

Catalog number: BKU-A4.0-259085 Features: ●Although it is slightly less hard than diamond, it has excellent heat resistance and is suitable for polishing steel. ●Highly durable coating technology reduces dust emissions, noise and vibration, and has high environmental compatibility. Applications: ●For engraving, processing and deburring of curved parts of high-speed steel, tool steel, hardened steel, bearing steel, etc. Specifications: ●Grit (#): 120 ●Blade diameter (mm): 4 ●Shaft diameter (mm): 3 ●Total length (mm): 45 ●Shape: Ball ●Maximum operating speed (rpm): 63000 ●Neck length (mm): 5 Material/Finish: ●CBN