Industry applications of worm gears, which is similar to a standard spur and the worm, which is a cylindrical gear that resembles a screw, allows for smaller gearboxes or planetary drives, while retaining torque or power. It is common for worm gears to have reductions of 20:1, and even up to 300:1 or greater.
Few gearing manufacturers have the equipment to engineer metal parts as precise as we do. Even fewer worm gear manufacturing companies have the machining equipment to check the tolerances we can hold.