: A rigid frame ensures consistent pressure, though some experts argue that a small amount of "flex" helps in planishing minute thickness changes in the metal.
: If you are on a tight budget, some manufacturers offer "parts kits" where you receive the machined wheels and adjusters but build the frame yourself using steel tubing. buy english wheel
: Determines the maximum width of the sheet metal you can work. A 20-inch throat allows for a 40-inch wide panel. : A rigid frame ensures consistent pressure, though