50pcs Diamond Burs Drill Set for Rotary Die Grinder CR-22F

Description ❤ Shank diameter: 1.6mm. ❤ Top-grade chrome steel shank, Top power, no rusty. ❤ Coated with diamond debris. ❤ Top amount of chrome steel,Top power, no rusty . ❤ Very good for nice element paintings, slicing, engraving, carving, contact-up and completing,engraving, and shaping with precision and element.