well... i am working on a chopper rear wheel right now that has a caliper/ pully set up from Exile cycles... the pully bolts backed out hit the caliper locked up the rear wheel... so much power that the sprocket kept spinning and ripped all 5 bolts in 1/2... i got 4 of them out... snapped 2 easy outs doing it... always fun to dig an easy out out of the hole you just drilled... well the last one (one i thought would be easiest) is not coming out... i have tried 23 diff drill bits, nothing wants to eat though this sucker! i have tired to heat it, nothing... need some tips, tricks, advice... you name it lay it on me! i want to get this sucker buttoned up today! ooh ya the bolt is broke off flush with the hub... sorry i did not take a pic. any tips?

 

See if you're able to dig a small groove on the surface of the bolt and then take a flat screwdriver or chissel and a hammer and see if you can get the bolt to turn as you pound on it at an angle. I got a broken bolt out of my supercharger once that way.

 

So you have an easy out down in the hole? If so you realize you can't drill though it. I try to break them up with a punch. But last time I mauled the metal all around the broken easy out. I took a carbide rotary file and the dremel. I tried to work around the easy out. It was a bitch. Once in awhile the file would catch the hardend easyout and jerk the Dremmel.
If you can't break it into pieces, start grinding.
After my last adventure, I will alway keep drilling till there is little bolt left and I can put in the maximum easy out.
Good luck

 

Try a left-twist drill bit. Usually spins them right out..
+1 on breaking up a snapped easy-out with a punch. They're very brittle...

 

Carbide end mill at a machine shop might work.

 

no the one that had the easy out in it i got out... the one that i have left is just a bolt... can not get a drill bit though it! no idea why... it is just below the surface to get a groove cut in it... i may have to put it on the drill press and put a new bit in then just slowly let it grove its way in there... we will see. was hoping for an old school trick that works... ooh well looks like i just have to do it the long way

 

Two words
Drill Doctor.

 

not bad! going to have to order one of those!

 

Left twist high speed carbide bit. Get it started with a punch. If you have a drill press it should come out. Don't forget to oil the bit while you are drilling. Make sure the bit is a good tungsten one. Call Big Kaiser precision Tool in Elk Grove or CJT/koolcarb in Carol Stream. They may feel pity on you and sell you one.

 

eh drill dr.'s are junk!!! just get a grinder and do it the old fashioned way to re sharpen best way to do it!