The blank is a circle-shaped sheet metal part that is first cut from the sheet metal blank. It will be structured in the part. The mandrel is a strong state of the internal shape of the part. Against the chuck, which is relatively sturdy, the blank will be pressed forcefully. For more complicated parts, such as those with surfaces with recessed features, multi-piece mandrels can be used. Since the mandrel does not suffer many wear effects in this procedure, it can be produced using weaker materials such as wood or plastic. On the other hand, high volume generation generally uses a mandrel made of a metal body. The blank and chuck are braced, held together and secured between the head and tail inside the lathe so that they can be rotated at high speeds by the shaft chuck. As the blank and mandrel rotate, force is exerted on the sheet metal by a tool, causing the sheet metal to bend and form a structure around the mandrel. The tool may require a few passes to complete forming the sheet. This tool is generally a roller wheel connected to a lever. The rollers are accessible in various sizes such as radius, circumference and thickness. They are typically manufactured using steel or other durable metals. The reels are reasonably priced and come across a lot