Specifications
- Number of pieces
- 2 adverbs
- Sizes
- Large 0.8–8 mm Small 0.3–3.6 mm
- Installation
- ¼ inch hex
- Material
- Carbon steel
- In the box
- 2 keyless chuck
- How to use
- Install the envelope on the screwdriver ⇐ Place the screwdriver ⇐ Tie the envelope with your hand ⇐ Punch a hole

