broken tap

[david williams 5Participant @davidwilliams5]

How do I remove a broken 2 B A tap from mild steel? davfou@aol.com  tap is carbon steel

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

[david williams 5Participant @davidwilliams5]

[macmarchParticipant @macmarch]

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

 

[Sub MandrelParticipant @submandrel]

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

[ianjParticipant @ians]

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 “

[Sub MandrelParticipant @submandrel]

Thanks Ian,

 

Neil

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