Tweco Roto-Ground is a highly efficient device for grounding weldments while being rotated on turning rolls or positioners. The 2 Inch shaft shoulders up to a steel nut which the user welds to his rotating work or fixture. Tweco Roto-Grounds have no brushes, springs or mercury. A simple tension adjusting bolt provides maximum efficiency

• GCRG-140 model
• Single headed
• 3/4 Inch NC shaft stud

Tweco® 92101314 Ground Clamp, Heavy-Duty, Rotary - C-Clamp, Cable Capacity: 1 - 4/0 AWG, Amperage Capacity: 400 amp, Copper Alloy