A hand crank corn sheller is a simple agricultural tool designed to remove kernels from dried corn cobs quickly and efficiently. Turning the handle rotates a spiked drum inside the housing. As the cob is pressed against the drum, the spikes catch and pry the kernels loose while the bare cob exits intact. The entire process relies on basic mechanical force rather than electricity or fuel. The spiked drum is the key to the design. Its spacing and shape are tuned so kernels are removed cleanly with