Home Page link

Drilling out a bolt

Home| Search | About
Login Password
Register Now! Lost Password?

Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

Page 1 of 2       1 2 > last >> Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Drilling out a bolt Brian Anderson 07-22-2005
| `--> Re: Drilling out a bolt PrecisionMachin...07-22-2005
|--> Re: Drilling out a bolt deans@wdeans.co...07-22-2005
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Brian Anderson on July 22, 2005, 7:35 pm


I'm trying to drill out some very old (but recently broken) Tapcon bolts
from a brick wall. They are 3/16" diameter bolts, and I tried using a
3/16" Titanium bit, but it didn't get me anywhere. I also tried
drilling a smaller 5/64" starter hole, also with a Titanium bit, but
that didn't work either. I am using a Black and Decker 3/8" corded drill.

Do I need a more powerful drill, or should I be using a different kind
of bit? Any suggestions are appreciated.

BTW, these bolts are about 20' up the wall. They held the letters of an
old sign, and the bolts broke when the letters were being removed for
repair. We'd like to put the letters back up in the same place they
were before, using 1/4" Tapcon bolts.

Thanks!


Posted by SQLit on July 22, 2005, 1:07 pm



> I'm trying to drill out some very old (but recently broken) Tapcon bolts
> from a brick wall. They are 3/16" diameter bolts, and I tried using a
> 3/16" Titanium bit, but it didn't get me anywhere. I also tried
> drilling a smaller 5/64" starter hole, also with a Titanium bit, but
> that didn't work either. I am using a Black and Decker 3/8" corded drill.
>
> Do I need a more powerful drill, or should I be using a different kind
> of bit? Any suggestions are appreciated.
>
> BTW, these bolts are about 20' up the wall. They held the letters of an
> old sign, and the bolts broke when the letters were being removed for
> repair. We'd like to put the letters back up in the same place they
> were before, using 1/4" Tapcon bolts.
>
> Thanks!

My suggestion is to move over a inch or two and drill another hole.
Tapcons are really hard and if they are broken off below the surface moving
over is the only practical idea I have.




Posted by Jeffrey Judd on July 22, 2005, 4:59 pm



> I'm trying to drill out some very old (but recently broken) Tapcon bolts
> from a brick wall. They are 3/16" diameter bolts, and I tried using a
> 3/16" Titanium bit, but it didn't get me anywhere. I also tried drilling
> a smaller 5/64" starter hole, also with a Titanium bit, but that didn't
> work either. I am using a Black and Decker 3/8" corded drill.
>
> Do I need a more powerful drill, or should I be using a different kind of
> bit? Any suggestions are appreciated.
>
> BTW, these bolts are about 20' up the wall. They held the letters of an
> old sign, and the bolts broke when the letters were being removed for
> repair. We'd like to put the letters back up in the same place they were
> before, using 1/4" Tapcon bolts.
>
> Thanks!
You might try a drill bit made of "carbide" or carbide tipped.
jeff




Posted by PrecisionMachinisT on July 22, 2005, 4:18 pm



>
> > I'm trying to drill out some very old (but recently broken) Tapcon bolts
> > from a brick wall. They are 3/16" diameter bolts, and I tried using a
> > 3/16" Titanium bit, but it didn't get me anywhere. I also tried
drilling
> > a smaller 5/64" starter hole, also with a Titanium bit, but that didn't
> > work either. I am using a Black and Decker 3/8" corded drill.
> >
> > Do I need a more powerful drill, or should I be using a different kind
of
> > bit? Any suggestions are appreciated.
> >
> > BTW, these bolts are about 20' up the wall. They held the letters of an
> > old sign, and the bolts broke when the letters were being removed for
> > repair. We'd like to put the letters back up in the same place they
were
> > before, using 1/4" Tapcon bolts.
> >
> > Thanks!
> You might try a drill bit made of "carbide" or carbide tipped.
>

Yup...

A carbide "screw machine drill"......(this a "stubby" drill bit ).....also,
suggest use of an air powered drill motor to get your surface speed up, as
electric drills generally will run at too slow of an rpm for effective use
with the smaller diameter drill bits.

--

SVL






Posted by deans@wdeans.com on July 22, 2005, 7:04 pm


Greetings,

I have had this same problem. In my case I drilled out a 1/2" hole
immediately BESIDE the tapcon to get it out. I filled the hole with
mortar which I was able to drill into to place another tapcon into the
exact same position. Depending on why the tapcon is there a filled
1/2" hole might not even be noticeable (remember, you can put the hole
on any side of the tapcon). If it is noticeable you could mix the
mortar with red latex paint colour matched to your brick instead of
water.

Hope this helps,
William



Page 1 of 2       1 2 > last >>
Similar ThreadsPosted
Rock drilling tools--quarrying, mining, water well drilling equipment August 15, 2006, 2:52 am
Down the hole hammer drilling and top hammer drilling equipment August 21, 2006, 11:39 pm
DTH(Down the hole hammer) drilling and top hammer drilling equipment August 21, 2006, 11:40 pm
What grade is this bolt? July 9, 2006, 5:02 am
Nasty Bolt April 23, 2007, 5:14 pm
Re: OT - Torque the Nut or the Bolt? June 30, 2008, 5:59 pm
Re: OT - Torque the Nut or the Bolt? June 30, 2008, 8:03 pm
Re: OT - Torque the Nut or the Bolt? June 30, 2008, 10:22 pm
Re: OT - Torque the Nut or the Bolt? July 1, 2008, 7:37 am
Re: OT - Torque the Nut or the Bolt? July 1, 2008, 2:46 pm

Contact Us | Privacy Policy

XML SitemapXML Sitemap