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1x RC4WD 9 Tooth .8 Mod Hardened Steel Long Pinion Gear
This gear is designed for Tamiya Clod Buster gearbox or similar custom truck.
What is heat treatment?
Heat treatment is a technique for metals and alloys to "toughen". The metal is transformed from brittle martensite into bainite or ferrite. Precise control of time and temperature during the tempering (heat treatment) process are critical to achieve a metal with well balanced mechanical properties.