1. Material: high carbon steel
2. Professional tool for spark plug repair, long life
3. High precision and high efficiency, better quality
4. Stronger and more durable, not easy to damage
5. Simple and convenient to operate, quick and easy to use
6. Weight: about 100g
7. Size: M14x1.25 (9mm long); M14x1.25 (11mm long); M14x1.25 (16mm long); M14x1.25 (20mm long)