I was shopping recently at the hardware store when I spotted a tile rubbing stone of 60/80 grit so I picked it up.
Thus far I am pleased; very hard, coarse, but not as aggressive as you would think. So I am guessing it is some type of aluminum oxide abrasive. I can still easily get arm hair shaving sharp off the 60 grit side.
Gonna see if it can be used as a dressing stone on my coarse aluminum oxide and silicon carbide stones which are around 100 grit.
My TASK stone works on the fine stones but not as well on the coarse ones.
Thus far I am pleased; very hard, coarse, but not as aggressive as you would think. So I am guessing it is some type of aluminum oxide abrasive. I can still easily get arm hair shaving sharp off the 60 grit side.
Gonna see if it can be used as a dressing stone on my coarse aluminum oxide and silicon carbide stones which are around 100 grit.
My TASK stone works on the fine stones but not as well on the coarse ones.