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broken tap extractor

silversix

Active member
Joined
Jun 2, 2009
Messages
39
Location
Los Angeles
I'm in need of a tool to remove broken taps. I found some on mcmaster carr's website which look pretty cool. Looking around for other options, what are you guys using? I tried searching but didn't find anything.
 
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A_Pmech

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May 8, 2007
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Location
IL
Buy a tap extractor for the appropriate size tap and the correct number of flutes. Try not to break the fingers of the extractor.

That's all there is to it. :)

I don't think I've ever seen a full set of tap extractors. Usually, you buy what you need when you need them. The size of your collection will depend on how often you break taps. :bounce:
 

rgates

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Jul 30, 2009
Messages
202
Location
Maryland
Walton Tap Extractors, they come in sets as well as individuals. I have there large set and they are very nice.
 

64merc

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Jan 24, 2008
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Location
Texas
I never understood how you know how many fingers you need. I'm referring to the Walton extractors. I haven't needed one, but I'm not sure which one I would order.
 

rgates

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Jul 30, 2009
Messages
202
Location
Maryland
I never understood how you know how many fingers you need. I'm referring to the Walton extractors. I haven't needed one, but I'm not sure which one I would order.

You look at the tap. It is determined by the number of cutting surfaces (flutes) on the tap. If the tap has 3 cutting surfaces you get a 3 fingered extractor, 4 surfaces you get a 4 fingered extractor. The extractors grab the broken tap in between the cutting surfaces. Hope this helps.
 
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Thedroid

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Feb 16, 2009
Messages
718
Location
New Mexico
Hmm, I've never heard of a tap extractor. There has been a few times i've had to use a punch to push a broken tap through the other side, and then drill and tap to the next largest size. As for the square ones, are you talking about a normal bolt extractor? I can see how the ones with fingers to engage the flutes would work, but a normal square extractor would not work.
 
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bmxr4life87

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Mar 21, 2009
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872
Location
Bixby Oklahoma
weld a bolt of smaller diameter to the remains... also works good on rounded bolts just find a nut to sit over the head and weld it up plus the heat makes it easier to extract
 
OP
S

silversix

Active member
Joined
Jun 2, 2009
Messages
39
Location
Los Angeles
I broke a 1/4-20 tap, and the way it sits makes it pretty much impossible to remove with anything but a tap extractor.
 

bigdummy30

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Joined
Aug 5, 2010
Messages
167
Bought one of these for a broken 3/8 tap in the head of my 350....the tap is below the surface and i tried my remover today between the rain and darkness and only managed to twist the fingers off.....i will cut off the fingers Sunday and re-attempt....

Any tips??
 

LXCam

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Joined
Apr 23, 2013
Messages
19,072
Location
AZ
Bought one of these for a broken 3/8 tap in the head of my 350....the tap is below the surface and i tried my remover today between the rain and darkness and only managed to twist the fingers off.....i will cut off the fingers Sunday and re-attempt....

Any tips??

Heat the area with a torch really well before trying again.
 

A_Pmech

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May 8, 2007
Messages
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Location
IL
It helps to wiggle the tap forward and backwards with the extractor to loosen it first.

A 1/4" butterfly impact on LOW can also be useful to shock the tap loose without breaking the fingers.
 

Jbullfrog

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Jan 9, 2007
Messages
2,347
Location
Avoca, Iowa
The biggest problem with broken taps is they are usually wedged in the thread. You have to jar the broken tap with a pin punch or small chisel in the opposite direction of what broke it, before trying to use a Wilton extractor.
 

Ign

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Joined
Jul 7, 2006
Messages
12,769
Location
Butte Peak ND
I've used the Omega kits with the super-duper drills. Comes in a yellow case, covers most sizes but runs well over $100. Maybe even $130.

The one time I really needed it, it DID work, but the bit broke somewhere along the way.
 

Turbo_Prop

Well-known member
Joined
Sep 23, 2012
Messages
297
Nitric Acid and some clay. Only works if the tap is in non-ferrous metal. Simply dissolves the tap. Another way if with some Alum and hot water on the stove. The Alum will also dissolve the tap.
 
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