Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: tambrath on 10 July 2011, 18:22:05

Title: Broken bolt
Post by: tambrath on 10 July 2011, 18:22:05

Hi all can any one recomend a good drill bit  to remove a bolt that has sear off being trying with a hss or tit coverd one but no joy help

Title: Re: Broken bolt
Post by: tigers_gonads on 10 July 2011, 18:53:16

Drill a pilot hole in the bolt then use a easy out  :y

Which bolt is it ?

Title: Re: Broken bolt
Post by: Andy B on 10 July 2011, 18:56:52

Quote

Hi all can any one recomend a good drill bit  to remove a bolt that has sear off being trying with a hss or tit coverd one but no joy help

Cobalt drill are good, but they are best used in a pillar drill rather than a hand held drill. They're very hard so do easily snap if they snag.

eBay (http://shop.ebay.co.uk/items/__cobalt+drill+bits_W0QQ_dmdZ2?rvr_id=246787604058&clk_rvr_id=246787604058&crlp=5595362963_228459_228459&UA=WXI7&GUID=faddc65812d0a47a2f13b103ff2210ca&agid=1827590363&tm_kw=cobalt+drill+bits&siteid=3&MT_ID=11&tt_encode=raw&keyword=cobalt+drill+bits&geo_id=21&ff4=228459_228459)

Title: Re: Broken bolt
Post by: tambrath on 10 July 2011, 19:01:43

its the bolt that hols the metal pipe in place under theromastat
houseing. been try all day just keeps blunting drill bits

Title: Re: Broken bolt
Post by: gstylebaby on 10 July 2011, 19:32:33

Oh mate thats got to be one of the worst bolts to snap its such a t**t to get at.  Try what Andy b say cobalt drill or left handed drill bit and do as tigers said see is if you can drill it with a small bit first as a pilot hole and then get a bigger bit in there and hope it starts to come out.....Once you get it out mate mite be worth runing a tap down it if you can get at it.  Good luck mate.

Title: Re: Broken bolt
Post by: Broomies Mate on 10 July 2011, 19:43:15

With Steel, there is a very fine line between pressure and speed.  Ideally, moderate pressure, slow speed.

If you spin the drill at high RPM, it will kill the bit in seconds.

Either use a Battery drill or ideally an Air-Drill with a regulator on the air-line.  Adjust the regulator until the drill spins nice and slow.


It wont hurt to spray shed loads of lubricant on the point you are drilling..... do this often.

Title: Re: Broken bolt
Post by: tambrath on 10 July 2011, 21:43:56

thanks we give it a try

Title: Re: Broken bolt
Post by: Bionic on 11 July 2011, 05:33:21

Oh dear!
You have learned the hard way why we all call it the B*stard bolt!  :'(
All have got it right though - all you can do is to start with a small drill and work your way up until you can get an easyout into it and then give it a good soak with Plusgas or WD and gently try it until it gives.
When you put the new one in giver it a good coat of Coppaslip!!!!!!
 :y

Title: Re: Broken bolt
Post by: kcl on 11 July 2011, 06:52:13

Quote

Oh dear!
You have learned the hard way why we all call it the B*stard bolt!  :'(
All have got it right though - all you can do is to start with a small drill and work your way up until you can get an easyout into it and then give it a good soak with Plusgas or WD and gently try it until it gives.
When you put the new one in giver it a good coat of Coppaslip!!!!!!
 :y

OP's got a TD, isn't it different, e.g. no B-bolt on it  :-/