rossddvm
That is a question I have wrestled with. I suggest a bath in chemical rust remover, which should leave them new-looking. You can scrub out the gullets with a used toothbrush or fine wire brush.
To keep them old-looking, you can skip the bath and clean them with a hand-held fine wire brush. You can use a sharp utility blade to scrape out each gullet, if they are packed. If there are a lot, do them a few at a time to avoid fatigue and shortcut-stimulating frustration.
I recall the absolute terms my 7th grade shop teacher used: “NEVER clean a file on a wire wheel.” But I have done it when a quick result was more important to me than a good result. The angle is critical - avoid abrading the cutting edges of the teeth.
However, because of the danger of dulling the teeth directly, or of introducing a magnetic field to the tool (which then clings to filings, dulling the teeth), I DO NOT reccommend it.
As far as rust prevention, a sealable container with packages of silicone desiccator, like come in electronics packaging, should help. Do not coat the files with oil or anything else - it can make them skid over work, flattening the teeth, or cause them to pick up debris and dull them that way. Just keep them as clean and dry as possible.
Rasps, if they are of excellent, irreplaceable, hand-made quality, can be professionally resharpened with waterjet. I talked to a guy one time who said he ships his to Italy for that purpose.
That is a question I have wrestled with. I suggest a bath in chemical rust remover, which should leave them new-looking. You can scrub out the gullets with a used toothbrush or fine wire brush.
To keep them old-looking, you can skip the bath and clean them with a hand-held fine wire brush. You can use a sharp utility blade to scrape out each gullet, if they are packed. If there are a lot, do them a few at a time to avoid fatigue and shortcut-stimulating frustration.
I recall the absolute terms my 7th grade shop teacher used: “NEVER clean a file on a wire wheel.” But I have done it when a quick result was more important to me than a good result. The angle is critical - avoid abrading the cutting edges of the teeth.
However, because of the danger of dulling the teeth directly, or of introducing a magnetic field to the tool (which then clings to filings, dulling the teeth), I DO NOT reccommend it.
As far as rust prevention, a sealable container with packages of silicone desiccator, like come in electronics packaging, should help. Do not coat the files with oil or anything else - it can make them skid over work, flattening the teeth, or cause them to pick up debris and dull them that way. Just keep them as clean and dry as possible.
Rasps, if they are of excellent, irreplaceable, hand-made quality, can be professionally resharpened with waterjet. I talked to a guy one time who said he ships his to Italy for that purpose.
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I have a few.
We were in high school and that paddle was still hanging there - with a crack in it!




















