Grounding clamp is made from durable copper alloy to provide consistent, long-lasting service. Clamp is designed to work with Tweco Roto-Ground Device (sold separately), but also works well for other high amperage grounding applications. Efficient clamp moves easily from one rotating weldment or fixture to the next, reducing down time. Large tightening screws and abundant contact surface area allow for quick and simple operation. Clamp/Spreader Type: Ground Clamp; Style: C; Throat Depth: 1 3/8"; Jaw Width: 2 1/2".