Sealey spot welding arms sealey 120803156 part of a comprehensive range of heavy duty spot welding arms suitable for sealey and other leading brands of welder the use of an electrode sharpener is recommended to retain optimum tip configuration and performancearms suitable for use with sealey sr122 available as rapid part 89 2857 and sr123 89 2858 spot welders sealey 120803156 spot welding arms 500mm large opening