Professional 300a/500a Welding Pliers. It is the Most Modern Welding Electrode Holder. It is Rated 300A/500A 60% Duty Cycle Version. Features: Design Protects Electrode from Damage. Fully Insulated and Protected Springs. High Durability Spring-loaded Jaws Clamp Rods Up to 6.4mm (0.252). Efficient Grooved Jaw for Firm Grip of Rods in 45, 90 to 180 Positions. Ergonomic Design for Heavy Duty Works with a Comfortable Fully Insulated Nylon Handle, Fits Comfortably in the Palm and Helps to Decrease Operator Fatigue. Reversible Top and Bottom Insulators Are Made of Superior Bakelite Material for Strength and Durability at High-temperatures. How to Use: The Electrode Holder Connects to the Welding Cable and Conducts the Welding Current to the Electrode. The Insulated Handle is Used to Guide the Electrode over the Weld Joint and Feed the Electrode over the Weld Joint and Feed the Electrode into the Weld Puddle As It is Consumed. 2 Versions Are for Option: 300A, Rated Current 300A 60%. 500A, Rated Current 500A 60%.. We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.