Earth Clamps… why you will never get a good weld with a bad clamp
Luckyweld 300 Amp Welding Ground Clamp, Welding Ground Suitable for MIG MMA TIG ARC Welder and Cutter Machine - Amazon.com
A Better Mig Welding Ground Clamp
Lincoln Electric 300-Amp Grounding Work ClAmp KH525 - The Home Depot
Lincoln Electric Silver Ground Clamp, Large Hex Screw Cable Connection, Unique Design, Large Contact Area in the Welding & Cutting Accessories department at Lowes.com
lesolar 500A Welding Ground Clamp Mig Welding Ground Clamps Electroplated Welding Earth Clip for Manual Welder Ground Clamp US Type - Amazon.com