- Forged of chrome vanadium steel, head surface with black polished treatment, anti-rust and corrosion resistant, durable and long service life
- Jaw with high temperature quenching treatment, high haedness, strong shear force to adjust wire diameter with revolving screw
- Insulated withstand 1,000 voltage
- Handle with ergonomic design, made of special insulated materials,low and high temperature resistance, flame-retardant and close connection
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