Drill out bolt - snapped bit

[Clive]

Had to drill out a bolt to remove (wouldnt turn at all!)

Head dropped of and item remove. I then had a small hole drill all the way through bolt, but cant get last bit out. To make matters worse I have not broken off a small drill bit in the hole!

Let job for today - going dark.

Any idea of how to proceed?

[Huge]

There's a bloke round here does mobile spark erosion. You won't be able to dril it out now, 'cos the snapped off drill bit is hardened.

[Alex]

How about a spell checker for a start

[Clive]

problem with spell check is that it does correct if the word is wrong but spelt correctly - i.e Let / Left

[Capitol]

It is sometimes possible to dig yourself out of this hole by using a small masonry drill using the impact setting on the drill. This fractures the HSS drill but not the bolt. Another trick is to add grinding paste and a lot of oil to the tip of the masonry drill. Worked for me!!

Regards Capitol

[Stuart Noble]

If there's room, cut a slot in the bolt with a hacksaw, and unscrew it.

[bigcat]

If we knew what the bolt was fixed into and how, maybe we could help.

ie vagueley generally speaking, its often poss to drill what the bolts fixed into to free the bolt.

NT

[dIMM]

hit it wi the wellie........

[keng]

If there's room, cut a slot in the bolt with a hacksaw, and unscrew it.

I wonder why he didn't try that at the start, would've solved the problem before it even arose .............. jesus wept !!

[MJ]

If a bolt has been rounded off by a spanner, and presumably mole grips slip too, then you're hardly likely to be able to unscrew it.

MJ

[Stuart Noble]

A brace and screwdriver bit is surprisingly effective. It's the impact at the end of the swing.