Originally Posted by
FuzzyRyder
If it was drilled out, then tell me why the entire hole is not bare metal and you can see the black anodizing on the unmarked side of the hole from when they painted the sprocket, after the hole was made?
The entire hole IS bare metal. The black ano is there because the thing that was rubbing against it was tapering inward, meaning that it had somewhat of a lip on it. That is why there is still ano between the hole and the circle.