This is a replacement key tab electorde and is designed to work with killler tools ART-38 dent puller. This is a plug and play and does not require any modifications. This electrode is for all of the steel dent pullers. Replaces the original Plug and Play no modification required Will hold all brands of weld keys Repleaces OEM part # ART38-KA This is a non OEM part that replaces the original. ART38-KA, Killer tools, Weld key, Electrode, Twisted weld key, Weld Rings, GAT-DPP-38-1, DPP-38-1