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Cleaning taps & dies that have surface rust

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mexican jon:
Whilst sorting through the cupboards in the workshop  :scratch: I discovered a lot of loose taps & dies that have been forgotten for a long time  :( Now whilst I probably don't need them as they haven't been used in such a long time it would seem wasteful to just throw them away  :loco: So he's the question whats the best way to clean them up? Some kind of chemical would be the preferred way as I can do them in batches.

trevoratxtal:
Citric acid (Lemon juice) very cheep on E-bay as crystals.
Works a treat.
Trevor.

PekkaNF:
Do you guy's have descaler for teakettles/coffeemakers in your stores? A 1/2l litre botle is cheap here and it has a mixture of citric / phosphorous accid. When heated near 70C is prety good in taking aways surface rust. Then little oiling/wax/WD40.

Bottles looks like this, but generic brands cost few euros here:
http://www.buyforhim.co.uk/Action::IFind--ID::B00J1M627I

Often the label describes these incredinets:
Aqua, Phosphoric Acid, Citric Acid, Dimethoxysilyl Ethylenediaminopropyl Dimethicone

Pekka

Manxmodder:
Agree with Pekka,a warm solution works far quicker than cold.

Also look up info on electrolytic de-rusting tanks. This is also a very effective way to shift the oxide but leave the base metal unscathed.

After you have de-rusted the taps it may be a good idea to hone the cutting edges of the flutes with a profiled hand diamond lapper or india stone......OZ.

inthesticks:
Been meaning to try one of those ideas with my drawer full of files many of which are starting to build rust. Maybe with handles they will get used more often :lol:.

Cheers
CB

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