These 48 pitch pinion gears feature 2 screw attachment holes in offset positions to enable attachment to motor shafts of any length. They are made from carburized steel and feature superb durability. In addition, their rounded teeth minimize friction loss, ensuring smoother, efficient power transfer. About the Items • Item 54466: 30T & 31T Pinion Gears x 1pc. each. • Item 54467: 32T & 33T Pinion Gears x 1pc. each. • Item 54468: 34T & 35T Pinion Gears x 1pc. each. • Use with cars that are equipped with a 48 pitch spur gear.