In 1800, Henry Maudslay had invented a machine for creating unique screws which was one of the most innovative and precise machine of that time named screw-cutting lathe . Designed all from metal, the new invention was strong distinguish because of performance, precision including slide-rest, durability and adjustabile gears. The machine has 12 feet in diameter and up to 10 feet in diameter for the spindle, producing screw and bolt which had to fit perfectly with an individual nut. The screws and bold had that unique and precise shape because the machine has an spindle that could advance in a continual rate.
