Features 
- Color: as shown in color 
- Material: Tungsten Steel Material 
-Size: 3.80X0.70X0.70cm 1.49X0.28X0.28in 
-Specifications: 0.1-1.0mm 2.1-3.0mm 1.1-2mm 
- Excellent workmanship designed for drilling and carving, meet most engraving requirements 
- Convenient drill set for drilling printed circuit boards, amber beeswax, jewelry, etc. 
- Compact and lightweight micro drill set is easy to use and improves work efficiency. 
- Drill bits are made of tungsten steel, high abrasion resistance, high hardness and work efficiency. 
- Excellent working performance, conducting drilling, carving, and other precision work. 
Package includes 30 x micro drill bits (various sizes)