What is this tool?

marinosr

Richard
Corporate Member
Probably not a woodworking tool but I don't know who else to ask. It's a brass conical point that a pocket knife blade folds into. Not often I find a tool I can't even guess at. Found in the lab of a geochemist.
PXL_20210419_143317605.jpg
 

tghsmith

tghs
User
it's the tool for sharpening a "cork borer" the brass tube hole cutters,, the tube is rotated against the cone while thumb pressure is applied to the blade.. a set is nice to have for cutting gaskets..
 

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