Drill Bits Set:
1.New High-speed steel Mini Set 7 pcs/set Micro Twist Drill Bit Set 0.2-0.8mm For Jewelry Tool Model Hobby Tools
2. High Speed Twist Drill Bits Great For Metal smiths, Metal Working & Drilling,Hobby Tool and so on.
3.Sizes:0.2mm,0.3mm,0.4mm,0.5mm,0.6mm,0.7mm,0.8.mm
4.Material: HSS(High-speed steel)
5. Can be used with a Hand Drill tool