I had a question about this rock with a hole in it? Did they sandblast the hole? Do you know ? Guess ?
They get $4 for a rock with a hole in it. I have lots of rocks
Many thanks Jim
You could sandblast a hole through them but I am not sure if they used a sandblaster. It could be sandblasted, but I would think there is a more cost effective way to do it such as using diamond cutting or concrete type drill bits.
Maybe they pre-drilled a small hole first and then used a sandblaster to make it slightly larger with a smoother surface. That would be more practical. Using fine sandblasting abrasive such as 180 grit will make the surface smooth as shown in the picture. So I am not sure exactly how it was done, but maybe those suggestions will help.
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