I would choose a rolling pin as the baking tool that represents one in this case. A rolling pin, used to flatten and shape dough, can be related to symbol of adaptability and transformation.
One who this represent must think that just as rolling pin transforms dough into a perfectly shaped pastry, one have the ability to adapt to various situations and help shape outcomes for the better.
Because of the rolling pin's smooth and even pressure, one who its represent will always strive for consistency and balance in their actions and interactions with others.
Also, just like the bakers use a rolling pin to create a foundation for various delicious treats, one must be able to provide a stable foundation and support for those around me helping them rise to their full potential.