The Metabo HPT – Hitachi 322048 First Pinion Set is a precision-engineered replacement component designed to transmit rotational force from the motor to the tool’s drive system. It works by meshing accurately with adjoining gears, allowing smooth torque delivery and consistent speed during operation. Manufactured to meet original equipment specifications, this pinion set helps maintai... https://www.wholetoolbox.com/metabo-hpt-hitachi-322048-first-pinion-set