Gold Burr

Hey y’all, First up I am not a jeweler, but I do enjoy reading
the post here, an am always in awe of the talent and
craftsmanship discussed. I am using a 2mm diamond core drill,
drilling a hole through a ceramic material that is gold plated
on one side, that is where the problem is. I am rolling a burr
when the drill comes in contact with the gold, currently I am
going back with a sharp steel hand tool and scraping the burr
off. This is very time consuming and a high risk of accidentally
scratching the surrounding surface. Does anyone have an idea for
an existing tool I could use or a description for a tool I can
make to remove the burr while keeping the surrounding surface
safe. A chamfering tool pull’s the plating and creates more
problems. Any ideas would be very appreciated. Thank you for your
time. Kevin ATM
From the sunshiny state of Alabama, just across the river from Rocket City, USA.

    Does anyone have an idea for an existing tool I could use
or a description for a tool I can make to remove the burr
while keeping the surrounding surface safe. A chamfering tool
pull's the plating and creates more problems. Any ideas would
be very appreciated.   

I would think that a large round or bud shaped diamond bur could
accomplish what you are trying to do without pulling the plating
off. Use it to create a small chamfer by using a light touch.
If you try this, let us know if it works. J.Z. Dule