Left handed bit might work, but it's a small bolt. (5mm)
Since the bolt was torqued enough to break off the cap, and they usually have blue loctite on them, I would have my doubts on if a left handed bit would grab strongly enough.
The extractor will be the best bet, but to prevent any damage to the hub the proper tools are needed.
-sharp drill bit ( sharp is very important)
-extractor
-drill motor
-hammer
-center punch
-M5 tap for blind holes
-tap handle
-lots of patience
Bits, taps and extractors are also very brittle due to their hardness, so take that into consideration
If you have any machine shops around that take walk-in jobs, it would take less than 5 minutes for a machinist to remove it for you.
Could the OP just use 5 bolts instead of 6?
I've done this on one of my hubs that had a messed up
thread and it seamed to work fine. Just make sure
to loctite the 5 remaining ones.
Can you get to the stud of the bolt form behind? If so, you might be able to grab it from behind with a pair of needle nose vise grips. Just be sure not to grab it too hard and booger up the threads. If you booger them up too much it won't back out of the hub.
But yeah, as others have said, I wouldn't blow too much time on it. It works just fine with 5.
Picked up an extractor bit from Home Depot today, under $3 bucks and went to town.
First drilled out a pilot hole first then proceeded with their recommended 7/64 drill bit. Punched in the extractor bit and it came out, piece of cake. :thumbsup:
Seriously, if your snapping heads off bolts do yourself a favor and take your wheel to a machine shop to fix. Could save you some money and headache in the log run.
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