TWE9250-1114 Features: -Price Is For One Each -Minimum Order Of 1.-TWECO Roto-Ground is a highly efficient device forgrounding weldments while being rotated on turning rolls or positioners. The 2" shaft shoulders up to a steel nut which the user welds to his rotating work fixture. TWECO Roto-Grounds have no brushes, springs or mercury. A simple tension adjusting bolt provides maximum efficiency..-UNSPC CODE: 23171500.-Manual Accessories Manual Accessories welding support equipment accessory. Specifications: -RG-140 TWECO ROTO-GROUND.