I’m about to buy 60 head of new cattle. So, I’ve got to expand my pasture very quickly. I have to dig several postholes for multiple gates/entryways. I’ve use the Pengo Aggressor auger bits for years, but the bit is wearing down too fast...the dirt is hard due to lack of rain. Anyway, someone told me to switch my dirt auger bit to a rock auger teeth. Has anyone tried this before? Are there any good videos on how to change the auger bit teeth?