MMA welding electrodes for professional steel welding, suitable for all welding positions, strong and smooth welding seams This set with 25 rutile welding electrodes 2.5 mm x 300 mm has been specially developed for MMA welding of steel. The electrodes produce strong, clean and uniform welds and are suitable for all welding positions, including flat, horizontal and overhead welding. Thanks to a stable arc and good ignition properties, you work precisely and efficiently during maintenance, repair and construction work.