Coring Through Rebars

 
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Old 10-28-2013, 04:38 PM   #1
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Coring Through Rebars


WHAT KIND OF DRILL BITS, OR TOOL OR MACHINE YOU WILL USE TO CORE 7/8 HOLE 8" DEEP IN CONCRETE, TROUGH TWO OR THREE #5 OR 6REBARS, HILTI WET DIAMOND BLADE IS OUT OF QUESTION, BURN OUT IN FIVES MINUTE DIDN'T DRILL NOTHING. ANY SUGESTION PLEASE, IT IS VERY IMPORTANT, YOU CAN EMAIL ME TO IF YOU WISH AT.
branko@brottocompanyusa.com
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Old 10-28-2013, 04:46 PM   #2
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Re: Coring Through Rebars


I have had no problem drilling with Hilti's core bits.
I use the ones specifically for wet cutting thru rebar.
I have used others as well, Its important to use the right diamond cores for the job.
It's more important knowing what your doing. I have done over 500 holes thru reinforced concrete with various machines, take it easy and take it slow,
I hope your using the base for drilling .
by burning, or ruining the bit tells me your doing something wrong.

Oh, and welcome

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Old 10-28-2013, 04:54 PM   #3
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Re: Coring Through Rebars


YOU DON"T HAVE TO YELL, WE CAN HEAR YOU.

Call your local cutting and coring company. You obviously need some help.
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Last edited by mudpad; 10-28-2013 at 05:09 PM.
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Old 10-28-2013, 04:58 PM   #4
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Re: Coring Through Rebars


I bet he is just using a SDSplus bit
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Old 10-28-2013, 05:06 PM   #5
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Re: Coring Through Rebars


Quote:
Originally Posted by Pearce Services View Post
I bet he is just using a SDSplus bit
Well, he said "core"

Are you using a core drill bit? That cuts a circle and leaves the center?
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Old 10-28-2013, 05:11 PM   #6
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Re: Coring Through Rebars


7/8" core??..8" deep?? just drill that sucker
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Old 10-28-2013, 05:26 PM   #7
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Re: Coring Through Rebars


You got it from 2 Steves now. What's the problem?
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Old 10-28-2013, 05:26 PM   #8
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Re: Coring Through Rebars


A Hilti core bit is about as good as you can get, unless you're using it wrong.
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Old 10-28-2013, 05:34 PM   #9
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Re: Coring Through Rebars


I'd bet a coffee that a 7/8" rebar cutter will go through rebar faster than a core bit.



Just drill until you hit bar, then toss in the cutter.
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Old 10-28-2013, 05:36 PM   #10
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Re: Coring Through Rebars


Quote:
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I'd bet a coffee that a 7/8" rebar cutter will go through rebar faster than a core bit.
Probably will. But apparently the OP is not using either one.
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Old 10-28-2013, 05:36 PM   #11
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Re: Coring Through Rebars


Dude...turn your cap locks off.
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Old 10-28-2013, 07:44 PM   #12
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Re: Coring Through Rebars


We use all right excluding rebar cutter we will try tomorrow, problem is, i have to core or drill 2000 same holes and if i reach only 50% steel will be very hard, well thank you for yours inputs, will let you know what happen tomorrow
branko tomas
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Old 10-28-2013, 07:58 PM   #13
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Re: Coring Through Rebars


Quote:
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We use all right excluding rebar cutter we will try tomorrow, problem is, i have to core or drill 2000 same holes and if i reach only 50% steel will be very hard, well thank you for yours inputs, will let you know what happen tomorrow
branko tomas
:

2000 Holes? I repeat my advice with more emphasis: Call Your Local Coring and Cutting Contractor! Then the only thing you will need is a Sharpie to lay out the locations.
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Old 10-28-2013, 08:19 PM   #14
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Re: Coring Through Rebars


Yeh sound good but i have lots of workers, and i have to do a best i can do, thank you for advise
bt
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Old 10-28-2013, 08:24 PM   #15
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Re: Coring Through Rebars


Quote:
Originally Posted by BROTTO View Post
We use all right excluding rebar cutter we will try tomorrow, problem is, i have to core or drill 2000 same holes and if i reach only 50% steel will be very hard, well thank you for yours inputs, will let you know what happen tomorrow
branko tomas
Well, we are talking about concrete and rebar right? These materials are used because they are durable, which by definition means they are not easy to put holes in.
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Old 10-28-2013, 08:25 PM   #16
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Re: Coring Through Rebars


You are using water, right?
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Old 10-28-2013, 08:39 PM   #17
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Re: Coring Through Rebars


Quote:
Originally Posted by mudpad
You are using water, right?
Just make sure you don't apply water after you have drilled for awhile. You must apply the water at the start of the drilling process, or you will ruin an expensive bit.
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Old 10-28-2013, 08:59 PM   #18
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Re: Coring Through Rebars


Sounds like we're drilling for dowels and if it's that many holes gang drilling is the way to go. I agree with mudpad, a company that specializes in that will save you money, time and heartburn.
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Old 10-28-2013, 10:44 PM   #19
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Re: Coring Through Rebars


I'm pretty sure the Engineer will be happy cutting thru all that rebar
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Old 10-28-2013, 10:49 PM   #20
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Re: Coring Through Rebars


Is this by chance a tensioned slab?

That is a lot of rebar to cut....

Sub it out....after you check w/an Engineer....

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