Electrode Holder, Maximum Current 400 A, Duty Rating Heavy Duty, Holder Jaw Material Steel, Type Twist-Style, Welding Processes Stick Welding (SMAW), Wire Gauge 3/0, Cable Connection Type Ball Point Screw, Series Shortstub, Holder Cable Socket Diameter 19/32 in, Features Electrode can be Used to Within One Inch of the High Heat, High Impact Head Compared With the Normal Three Inches of Electrode Leftover With Typical Tong-Type Holders, For Maximum Electrode Diameter 1/4 in WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov - Nickel (Metallic)