300A Heavy-Duty Insulated Electrode Holder Welding Clamp (High-Conductivity Copper Jaws / 45° & 90° Multi-Angle Gripping / Thermal Handle)

300A Heavy-Duty Insulated Manual Metal Arc (MMA) Electrode Holder Clamp. Constructed with thick high-conductivity forged copper alloy jaws featuring multi-groove clamping slots for firmly gripping 2.0mm to 4.0mm welding rods at 45°, 90°, and 180° positions. Encased in a high-impact, fire-resistant fiberglass/DMC composite insulated handle to prevent electric shock and overheating during continuous fabrication duty.