Ground Clamp, 500 A, 1 2 in Stud Connection, Steel no checkout 300 rpm Stock Status In 300 rpm Stock Status In Stock Style SGP Z Curve Thickness [Nom] 5 8 in Type Radial (Type PFR) Welding Catalog NO Lightweight high impact ABS case Durable 1 2" 3mm wide fiberglass tape is encapsulated in flexible plastic Non conductive material with easy to read black and red markings on yellow background Lightweight high impact ABS winding drum provides smooth tape recovery Hi Viz® orange case Designed primarily to work in conjunction with the Tweco Roto Ground device May also be used for other high amperage grounding applications Clamp is quickly attached or moved from one rotating weldment or fixture to the other without removing the Roto Ground from it Saves welding downtime