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.
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.
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
Hope this helps,
The bolt and the bit are both harder than the brick. probably end up with a
ragged hole even a 5/16th bolt wouldn't fit in. You're better off moving
over 1 inch and starting with new holes. It will take less time, cause less
frustration and is more likely to succeed.
If the bolts are sticking out a bit, try a vice grip and unscrew but it
dosen't sound like you have that option.
Drilling isn't gonna work.
What the world needs is a hollow carbide-tipped drill that fits over
Tapcons. Then you could just drill over the busted Tapcon, reaming out a
little ring of the surrounding masonry, and then replace with epoxy anchors
or fresh masonry fill. Kind of an anti-Tapcon drill.
In alt.home.repair on Fri, 22 Jul 2005 21:08:42 -0500 Richard J Kinch
Send me your plans and 500 dolllars and I will get this patented for
you. If you act now, you will also receive two free books, Inventions
that Changed the World, and How I made 2 Million Dollars in Real
Estate with Only a Thousand Dollars Down.
If emailing, please let me know whether
or not you are posting the same letter.
Change domain to erols.com, if necessary.
you could search the archives of rec.crafts.metalworking
this is a recurring problem in their sandbox
My own experience is that KROIL brand fluid has incredible power to
self-wick into the threads of stuck bolts. Give it time to wick in
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.