"Expander" processing. Tube Expanders are rolling tube type expansion tools used for fixing and molding tubes to tube sheets in the manufacturing processes of heat exchangers such as boilers and...
Description. Deda's Expander Bung features a high-quality alloy construction with a high-grip knurled finish. This ensures it provides a firm hold on the inside of carbon fibre steerers, so you can corner and descend in confidence. Read More.