Diamond nail drill bit ball blue head EXPERT diameter 4 mm ULK-PRM-52 AISI 420 steel at 48

AISI 420 steel at 48 to 51 HRC: corrosion-resistant and polished with GOI paste

KODI shade 100 is a soft

lateral nail fold opening

and dark metallic accent nails

Diamond nail drill bit ball blue head EXPERT diameter 4 mm ULK-PRM-52 AISI 420 steel at 48STALEKS PRO Expert diamond ball drill bit with a larger 4 mm head and blue (medium) grit coating, designed for faster coverage on cuticle removal and sidewall cleanup. Key Features 4 mm Ball Head larger diameter covers more surface area for quicker, more efficient processing Blue Medium Grit general purpose abrasiveness suited for cuticle, fold, and dead skin work Diamond Coating grinds rather than cuts, providing controlled material removal with