Made of high-quality chromium molybdenum steel material, it has super toughness and hardness, strong torque, is not easy to wear, break, or deform, and has high strength stability
Through heat treatment technology and overall high-temperature quenching, it is sturdy, durable, and has high precision. The precision forging surface is carbon black phosphated, rust proof, and designed with a hexagonal drive arc inner angle, which provides stronger locking force. It also features a concave groove design and a cutting and blasting pier forming process Passivation process has no burrs and is not easy to slip
| product NO. | size | BOX/ctn(pcs) |
| BK – 2 12 6 0 1 | H 4 | 1 / 2 0 |
| BK – 2 12 6 0 2 | H 5 | 1 / 2 0 |
| BK – 2 12 6 0 3 | H 6 | 1 / 2 0 |
| BK – 2 12 6 0 4 | H 8 | 1 / 2 0 |
| BK – 2 12 6 4 0 | H 9 | – / 2 0 |
| BK – 2 12 6 0 5 | H 10 | 1 / 2 0 |
| BK – 2 12 6 4 1 | H 1 1 | – / 2 0 |
| BK – 2 12 6 0 6 | H 12 | 1 / 18 |
| BK – 2 12 6 0 7 | H 14 | 1 / 18 |
| BK – 2 12 6 0 8 | H 1 7 | 1 / 18 |
| BK – 2 12 6 0 9 | H 1 9 | 1 / 18 |
| BK – 2 12 6 10 | H 2 1 | 1 / 12 |
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