Nanook
Full House
You never noticed that new/mint/uncirculated chips have crosshatching on the face of the chips??not sure I understand crosshatching on the edge, I've seen tool lines that do wear down with age, yet still have a sharp edge
Also that crosshatching generally wears away long before a chip won't stand on edge?
Don't get me wrong, I am not encouraging or even saying that edge reconditioning is a desirable thing. Actually, the whole edge reconditioning has nothing to do with the OP so whatever....
My point is only that just like most murder/relabel is not fooling anyone and is also not meant to fool anyone neither would edge reconditioning fool someone into thinking they were buying a new/uncirculated chip