Broken Tap in a 2 Way tool holder

Old Iron

Old Iron

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OK I've been building a 2 way tool holder for a project I'm working on. I got it all finished but needed to tap 4 wholes 10/24 and broke the tap on the last whole.

I really hate to start over and make another one so I need some ideas to get it out. It is broken even with the top and bottom.

I tried using a punch to move it but that didn't work either.

Paul

Broken Tap.JPG Broken tap 2.JPG
 
Since you tried the tap and wiggle method, do you have a diamond burr for a Dremel? I have used these before with good success. Since it is a small tap you will have to go down the center, just take your time and grind it out. Place the tool holder in a can and fill water etc to keep lube on the burr to not burn it up.


The other option is hurry up with that Ram EDM and burn it out!
 
jumps4 said:
last time i did that i used a drewel and diamond burrs it took forever
i found these on the internet


this one works in a lot of metals
http://www.chemical-supermarket.com/product.php?productid=574
this one is for aluminum
http://www.homemodelenginemachinist.com/index.php?topic=270.0
hope that helps
steve
Click to expand...


Check out the links very interesting stuff.
better buy it soon though. I recall as youngster/kid. chemist kits were/could be found right off the shelf
at any toy/dept store. now days? you hard pressed to even buy mineral spirits.! much less anything else.

I went into my local H0me Dep0t. in search of mineral spirits. I found a jug that said "100 % pure mineral spirits"
I got home. opened it up... only to find this white milky solution? I thought WTF?:shrugs: I almost went with it. but fortunately I had the
sense to call the mfd. listed in/on the msds . they said "its a 100% all natural emulsion" I responded by saying so, I can just go ahead
and mix it with my clear mineral spirits? They said NO! and then blah, blah, blah, & blahing commenced... Instantly, in my head the :holdphone: conversation had
gone from what i was hoping to be a simple answer to Im no friggen chemist.... I bailed out on the stuff and went to a paint store and got the real thing.
I later contacted my chemist friend and explained what had happened. his answer had me :banghead:

makes me wish I still had the chemist kit as a kid.
 
Well it looks like I just need to make a new one, Be cheaper only cost some electric power. Thanks for the links I'll get back to those later.

Paul
 
now that you have decided to make a new one i will suggest this. with a hot cutting torch centered on the tap blow it out if done fast the tap will go before the part heats. I used to do it all the time. it is a through hole and will work good. you have to do it fast to not heat the part only the tap.
steve
 
Thanks Steve

I guess I'm getting to old didn't even think of that even through I've done it before.

Paul
 
jumps4 said:
now that you have decided to make a new one i will suggest this. with a hot cutting torch centered on the tap blow it out if done fast the tap will go before the part heats. I used to do it all the time. it is a through hole and will work good. you have to do it fast to not heat the part only the tap.
steve
Click to expand...

Yep. I was going to say the same thing. Also, trying a smaller diameter bit than the hole and drill out the tap. I've done that too. Me being the stubborn bastid I am :biggrin: would've tried a few things before giving up for a new one.
 
I read in an old book that muriatic acid will help in this case
 
I did make a new one however I'm going to need 2 so I'll get the tap out later.

Paul
 
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