How do you drill out a bolt?

AmDaMan · 28 Mar 2006 at 15:26

Hi, the little star screws holding my disks are not moving and the head is a bit damaged.

How would I go about getting it out? Thanks,

Firestar_3x · 28 Mar 2006 at 15:32

Might be of some help ->

http://www.dansmc.com/stripbolt.htm

Sputnik II · 28 Mar 2006 at 16:11

Buy yourself a left handed HSS drill bit then using a reversable drill start drilling it and the heat of the drill and the reverse rotation will often undo it. If it doesn't then provided the drill is the correct core size for the thread in question you should be able to peel the remainder of the thread out of the hole.

Glaucus · 28 Mar 2006 at 16:17

No easy way. if its a bolt and nut option, you just get a drill slightly larger than the diameter of the thread. Drill into the head or the nut till it falls off.
If its a bolt into a pre threaded hole(ie in the car rather than a nut) then drill out at the same size as the diameter of the thread then get a thread maker tool, to re-do the thread.

Enfield · 28 Mar 2006 at 16:46

Q: How do you drill out a bolt?
A: With a drill

sorry

jumpy · 28 Mar 2006 at 16:48

I'd try an impact driver first before attacking the wretched thing with the drill and a tap and die set...

Stefn · 28 Mar 2006 at 16:53

Enfield said:
Q: How do you drill out a bolt?
A: With a drill

sorry

The correct name for a 'bit' is a 'drill'.

rs125 · 28 Mar 2006 at 16:54

Is this the little screw that holds the discs to the hubs?..

moss · 28 Mar 2006 at 17:01

jumpy said:
I'd try an impact driver first before attacking the wretched thing with the drill and a tap and die set...

Like Jumpy said, an impact driver is probably a better bet first.

Trickle · 28 Mar 2006 at 17:07

Drill a pilot hole with a small bit. It must be dead centre - this is the most important and hardest to do part.

Increase drill bit size until the drill bit is almost the diameter of the bolt.

The bolt thread should then peal out or can be picked out.