12 Inch Shaft Pinion Gear is made with an accurate rotation gear that is designed to be used in machines. It is made of a metal shaft that comes in a variety of sizes with a shaft pitch. 12 Inch Shaft Pinion Gear is the ideal gear for any building, from rigid off-road vehicle construction to backyard projects. It is built to last and delivers a high gear count with less material and weight than competitive products. It is designed for universal fitment on most shafts and offers high performance at a competitive price.