The Tinker & Rasor Wire Brush Electrodes are made from very small individual wires. The wire brush electrode meets many different requirements and applications, especially for coated surfaces that are uneven or include fittings, bolts, or other tight corners that need to be inspected. The electrode is used to inspect weld joints on the outside or coatings applied to the inside of pipelines. Also, the electrode can be useful for inside and outside of tanks, rail cars, concrete structures, just about any conductive substrate with a non-conductive coating.