Made of high-quality chromium molybdenum steel forging, cold pier type heat treatment, high hardness, and impact resistance
Surface phosphating treatment. Explosion proof performance More impact resistant, soaked in anti rust oil, strengthened anti rust universal joint function flexible, convenient and fast. Cardboard is suitable for high-altitude operations
Suitable for thickened design of pneumatic and electric tools, superior impact resistance, strong torque, and long service life
| product NO. | size | length |
| BK – 2 12 7 4 0 | 1 “ | 13 3 |
| BK – 2 12 7 4 1 | 3 / 4 “ | 10 5 |
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