Robinson Racing Super Hard "Absolute" 48P Steel Pinion Gear (3.17mm Bore) (21T)
Premium Heat Treated "ABSOLUTE" Steel Pinion Gears
Super hard, heat treated, "Absolute" pinion gears are a must for using with steel spur gears, and will last and last if used with plastic spur gears.
Available in sizes 9 through 28 teeth. All pinions stamped with tooth number. 3.17mm (1/8") bore. One 5-40 set screw included.