On 2019-01-09 11:32 a.m., curt seeliger wrote:
> Good day, folks. Do any of you have experience staking rust from fine
> needle files -- #4 & #6 cut? I imagine I can drop them in vinegar or citric
> acid, bu am wondering if that would damage the fine teeth.


I think the acid would sharpen the teeth. But for rust removal, I'd use 
evaporust.

Don

-- 
A thermometer is not liberal or conservative. - Katharine Hayhoe

A good row does wonders for raising interest, and to be 'good' a row must have
something to be said on both sides,
  and a proper issue in the middle." - Rosemary Hill, 'Writing About the
Crafts', in The Culture of Craft, Peter Dormer, ed.

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