Electrode Holder, Maximum Current 400 A, Duty Rating Medium Duty, Holder Jaw Material Copper Alloy, Type Twist-Style, Welding Processes Stick Welding (SMAW), Wire Gauge 1/0, Cable Connection Type Ball Point Screw, Holder Cable Socket Diameter 1/4 in, Features 1/4 in Rod, Twist Grip, For Maximum Electrode Diameter 1/4 in, Includes Bush, Hex Key, Weight 17.1 oz WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov. -