Hi-Fold Rotation Spiral Casing Brush is a mechanical aid for cleaning wellbore casings. The galvanized brushes provide the flexibility to pass through tight spaces, with the ridigity to effectively clean the wellbore. The galvanized finish prevents corrosion, allowing for many uses before replacement is required. The Bristles can be changed out with ease in the field or shop. This tool is commonly used for cleaning prior to abandonment plugs and not to be used in active wells or temporary suspensions, as it would remove corrosion protective layer.