Answer:
Iβm white; perfect for cutting & grinding. For most animals I am a useful tool.
One pace to the north. Two paces to the east. Two paces to the south. Two paces to the west. One pace to the north.
I'm an old relative who's hand's can't hold anything and eyes canβt see anything
I lose my head in the morning and regain back it at night.
The more you work the more I'll eat.You keep me full I'll keep you neat.
No matter how little or how much you use me, you change me every month.