[HIGH QUALITY] Shank diameter: approximately 1/8" (3.175mm)
Micro Carbide Drill 10pcs 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm
[EXCELLENT FOR YOU] The drill has a large debris discharge space, low resistance and no problems during discharge of debris.
[PERFECT FOR WHAT YOU NEED] Cutting edges strictly prevent partial hole, ensure quality.
Random handle ring color may not match the picture