Conductivity: Made with copper, this 300A heavy duty welding electrode holder ensures high conductivity during welding, effectively reducing resistance loss Ideal for professional welders requiring stable over long periods Insulation: Features a PVC rubber outer layer providing excellent heat resistance and insulation, accidental electric shocks in high temperature environment Perfect for industrial manufacturing application Heavy Duty Construction: Built to withstand high load welding tasks, this 300A heavy duty welding clamp extended durability Suitable for heavy industry and large scale projects Versatile Application: Perfect for various welding scenarios including construction, automotive repair, and metal fabrication Suitable for both professional engineers and enthusiasts Ergonomic Handle Design: The comfortable and secure grip reduces fatigue during prolonged use, making it ideal for welders who frequently change positions Enhances work efficiency and control, Manufacturer: CAZSTYK