Boker Epicenter detent replacemnt

[turtle13]

was playing around with carbidizing the lock face of my epicenter last night, and when I opened it, I heard the ding, ding ding ding dinggggggg of the detent bouncing off into oblivion...
So of course I can not find my calipers anywhere to measure the detent hole at this time.
Does anyone know the detent size for the epicenter?
If so, is it a bearing size I can get at a decent specialty hardware store?

 

[turtle13]

Just in case any one runs into this in the future, it was 5/64 size bearing.