- Aluminium Bronze material, both non-sparking and non-magnetic. Adopt die-forging technology, die-forged by large friction pressing machine
- Arc angle design, to protect nuts. Used with extra long extension bar, labor-saving. Used with spanner dowel-pin, stable and firm, easy to disassemble
- Precision casting, high hardness and strong torque
- Aluminium Bronze Non-sparking Tools. Use electrolytic copper as the main raw material, applied in flammable and explosive places