1mm Precision drill bit, it does drill 1mm not what you find out there drilling bigger than what they are advertised.
Can be used with a hand held drill bit holder or with a power tool.
Please note, being so small they are extremely delicate and any drilling done at angles using an hand held drill bit holder they will break.
10 pieces pack for single unit see link https://scalelabmodels.com/product/1mm-precision-drill-bit/
