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broken tap

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david williams 510/02/2010 17:21:34
9 forum posts
How do I remove a broken 2 B A tap from mild steel? [email protected]  tap is carbon steel

Edited By david williams 5 on 10/02/2010 17:25:36

macmarch10/02/2010 19:11:00
147 forum posts
1 photos
It all depends on whether you broke it on the cutting  or backing stroke. Is it a 2,3 or 4 flute. If a 2 flute then a centre punch and 8 oz hammer can shatter the remains. if 4 flute then a tap extractor and patience will get it out. 3 flute extractors are, however hard to find. If the job is worth it then a spark eroder can be used. HTH
 
Stub Mandrel11/02/2010 21:49:45
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4318 forum posts
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I read a tip that you can use a solution of alum salts to eat away taps broken in aluminium. Not much help for mild steel, I know, but it's a problem I've had.
 
Unfortunately these days the chemists don't sell chemicals anymore. Does anyone know a source for alum salts?
 
Neil
ian j11/02/2010 22:55:16
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337 forum posts
371 photos
You can buy "broken tap remover"  on Ebay for £8 + P & P. There's some there now item 290400365745. I bought some last year & "it does what it says on the tin "
Stub Mandrel13/02/2010 22:59:59
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4318 forum posts
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Thanks Ian,
 
Neil

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