1. Professional portable hardware tools.
2. Light weight, compact design.
3. High hardness and good toughness.
4. Bits size:
- Straight: 1.0, 1.5, 2.0, 2.5, 3, 3.5, 4.0
- Nut Driver: M2.5,M3.0,M3.5,M4.0,M4.5,M5.0,M5.5
- Hexagon: 0.7,0.9,1.3,1.5,2.0,2.5,3.