Module DimeterInner borelengthteeth0.1-0.152580.5-0.62880.3-0.432131903250121.25 903250121.5903270121.759032701221004070122.251004070122.51004070122.75110408012................ We can supply all kinds of the Gear Hobs, especially we can do the Non-standard ones for u according to ur specific requirements.