removing broken ez-out
 

hi to all need help i was extracting broken studs on my motor when i broke the e-z out stud extractor in stud ,too low to weld a bolt or anything else ,anyone know is there a drill bit , carbide tip or something stong enought to eat up the extractor..thanks guys ....Angel

Try a small carbide ball die grinder, had to use them on taps before.

you can use a Metal Disintegrator

http://www.electroarc.com/

As my friend Mark DeYoung told me once:
"An EZ-out is an tool for replacing a difficult to drill out bolt with an impossible to drill out EZ-out"
-Chris

EDM time...

+1 on the carbide drill bit, but you have to have a steady hand with the smaller bits our they snap

What size E-Z out bit broke? If you have a good Dremel, or similar tool, you might be able to get the broken bit out with repeated use of some of the very small carbide, or diamond bits. I have seen too many of the extractors break(square type more often) then it really is a pain, as you are now finding out. If you can get the broken tip out of the broken bolt/stud, invest in a quality set of left-handed drill bits. I have yet to be defeated by a flush or below surface broken stud/bolt, when removing them with the proper left-handed drill bit. I personally use a DeWalt 18V 1/2" Hammer Drill, set on Low Speed, with the torque ring set for the hammer. The hammer action really helps get the broken stud/bolt quickly. I do not believe that I even own any of the E-Z out, or other similar extractors, because I have seen them fail too many times.

e-z out
 

Thanks to all who responded this be will next weeks project ,hopefully patience and time will help .........thanks for all your suggestions

with stubborn bolts/ studs HEAT is your friend, and not a Lil propane torch.....propane and oxy is great and safe (safer then acetylene). I swear they see that coming at them and they leap out !!

The small carbide files spoken of here are common dental burrs, which you can get at a dental suppluy house. Chuck it up in a Dremel.

Worst case scenario is to take it to a machine shop and have them drill it out with a carbide drill. I have broken taps before and a carbide drill will go right through it.

Since EZ-outs (and taps) are brittle, I've used a hammer and a center punch to break them up where they've snapped in thick flat plate. I'd be very careful not to booger anything else up trying this in your situation. Are you installing inserts anyway?

Tim K