This is a Hot Racing open secret pinion gear.
*Made from 416 stainless steel
*Lightened and relieved at all non stress points for the lowest
rotating mass
*Magnetic in all conditions
*low coefficient of friction properties that reduce galling.
*good corrosion and oxidation resistance plus high strength
*Tooth size is stamped on the side of the shaft
*Special narrow tooth web for less drag good for use with stealth
spur gears
One pinion gear 3mm set screw
48 pitch length - 9.5mm"
21 tooth
416 stainless steel