Drilling Holes In Concrete Slab - Building & Construction - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 10-18-2010, 10:14 AM   #1
Member
 
Join Date: Jul 2009
Location: SW Ohio
Posts: 407
Rewards Points: 258
Default

Drilling holes in concrete slab


I'm drilling holes into a concrete slab and it seems to be taking forever for each hole. I'm using a 1/2" masonry bit (Bosch) with a 10 amp drill and I'm only drilling about 3" down, but each hole is taking 10-15 minutes.

Any tips on ways to speed this up? If I made a smaller hole first, would that help? Are there other drill bits that are much better/faster? Or should Spif just suck it up cuz this is how it is when it comes to drilling in concrete?

Advertisement

spaceman spif is offline   Reply With Quote
Old 10-18-2010, 10:37 AM   #2
Member
 
Join Date: Jul 2010
Location: Ontario Canada, Toronto to be exact.
Posts: 1,373
Rewards Points: 500
Default

Drilling holes in concrete slab


Use a hammer drill to drill into concrete with a concrete bit. If you are using a standard drill you will wear your bits out faster and takes a lot more time. The hammer drill drills and hammers the drill bit into the concrete which makes the job a lot faster.

Advertisement

epson is offline   Reply With Quote
Old 10-18-2010, 11:15 AM   #3
Member
 
Join Date: Jul 2009
Location: SW Ohio
Posts: 407
Rewards Points: 258
Default

Drilling holes in concrete slab


Looks like I can get a decent one for under $100. Might be time to bite the bullet and buy one!
spaceman spif is offline   Reply With Quote
Old 10-18-2010, 11:22 AM   #4
Member
 
Join Date: Jul 2010
Location: Ontario Canada, Toronto to be exact.
Posts: 1,373
Rewards Points: 500
Default

Drilling holes in concrete slab


The hammer drill comes in handy. You will be glad you purchased one. Makes life so much easier…
epson is offline   Reply With Quote
Old 10-18-2010, 05:38 PM   #5
Member
 
Join Date: Mar 2010
Location: PENNSYLVANIA
Posts: 2,258
Rewards Points: 1,044
Default

Drilling holes in concrete slab


You can buy one at harbor freight for about 20.00 that will do the job.

I bought one and have used it on all kinds of jobs.
COLDIRON is offline   Reply With Quote
Old 10-18-2010, 06:21 PM   #6
Member
 
Join Date: Jul 2009
Location: SW Ohio
Posts: 407
Rewards Points: 258
Default

Drilling holes in concrete slab


I think I am an official DIY geek. I stopped at Lowe's and bought one, brought it home just in time to watch it suddenly start to rain hard. And I felt disappointment because I couldn't try out my new hammer drill.

What kind of person gets disappointed when rain cancels their work???
spaceman spif is offline   Reply With Quote
Old 10-18-2010, 06:25 PM   #7
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,442
Rewards Points: 2,466
Default

Drilling holes in concrete slab


if you need 1 for work, ebay - bosch bulldog - 3/8" hole 3" deep in 4,000psi conc - 2 min IF you need 1 to make a living,,, it you want a throwaway chink knockoff, northern hydraulics/freight will do fine, i guess,,, for the price of the bosch, you could buy 4 chinaman's replicas,,, bear in mind there's generally no repair for those, no parts ( parts ? ), & no getting someone to svce them - that's PRICELESS
stadry is offline   Reply With Quote
Old 10-18-2010, 06:42 PM   #8
Member
 
Join Date: Apr 2007
Posts: 2,302
Rewards Points: 1,038
Default

Drilling holes in concrete slab


i have a Makita SDS-Plus hammer drill, which makes it a piece of cake. doing it with a regular chucked drill head system is no way to go, even if you use supposed "masonry bits" ...

takes me probably 15 sec to drill a 5" hole in the floor or maybe 30 to drill one horizontally in my foundation footer (setting anchors when i was dropping the floor). that machine is friggin potent, well worth the $$ (i think was $200)
amakarevic is offline   Reply With Quote
Old 10-18-2010, 06:50 PM   #9
Member
 
Join Date: Jul 2009
Location: SW Ohio
Posts: 407
Rewards Points: 258
Default

Drilling holes in concrete slab


I've never used a hammer drill before. I just plugged my new one in to test it out, and I can't tell any difference between the regular drill setting and the hammer setting. Is the "hammer" motion of the drill so slight you can't really tell? Or should I be able to easily tell a difference?
spaceman spif is offline   Reply With Quote
Old 10-18-2010, 06:58 PM   #10
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,442
Rewards Points: 2,466
Default

Drilling holes in concrete slab


1st, we NEVER use an electric tool that's NOT gfci protected,,, there's a rotating switch on most,,, some drills are 2-way - rotation & hammer/rotation,,, others are 3-way - hammer, rotation, & hammer/rotation,,, we guys have gender impediments so do what our wives do - READ THE DIRECTIONS
stadry is offline   Reply With Quote
Old 10-18-2010, 07:04 PM   #11
Member
 
Join Date: Jul 2009
Location: SW Ohio
Posts: 407
Rewards Points: 258
Default

Drilling holes in concrete slab


Quote:
Originally Posted by itsreallyconc View Post
1st, we NEVER use an electric tool that's NOT gfci protected,,, there's a rotating switch on most,,, some drills are 2-way - rotation & hammer/rotation,,, others are 3-way - hammer, rotation, & hammer/rotation,,, we guys have gender impediments so do what our wives do - READ THE DIRECTIONS
Heck, I read the directions in all 10 different languages!

But I switched it to "hammer" mode, spun it a bit, then set it to "drill only" mode and couldn't tell any difference at all. Switched back and forth a few more times, and saw no difference. I thought I'd be able to see/feel the chuck rapidly moving up and down in the "hammer" setting, but I don't.
spaceman spif is offline   Reply With Quote
Old 10-18-2010, 07:08 PM   #12
Member
 
Join Date: Jun 2009
Location: atl & hilton head
Posts: 3,442
Rewards Points: 2,466
Default

Drilling holes in concrete slab


then why do you have spare parts left over ?

go out in the garage, put in a bit, & drill a hole under the beer fridge,,, you need to put pressure on the pawl inside the drill to actually ' feel ' it hammer unless you bought the ' northern ' brand - they rarely work
stadry is offline   Reply With Quote
Old 10-18-2010, 10:10 PM   #13
Member
 
Join Date: Jul 2010
Location: Ontario Canada, Toronto to be exact.
Posts: 1,373
Rewards Points: 500
Default

Drilling holes in concrete slab


Quote:
Originally Posted by spaceman spif View Post
I've never used a hammer drill before. I just plugged my new one in to test it out, and I can't tell any difference between the regular drill setting and the hammer setting. Is the "hammer" motion of the drill so slight you can't really tell? Or should I be able to easily tell a difference?
When you switch the drill to hammer mode put a concrete bit in and start drilling into concrete you will feel the drill actually hammering the bit into the concrete as its drilling it in. That’s how you will tell the difference.

Advertisement

epson is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lots of newbie Concrete Fountain Questions! wps74 Building & Construction 18 08-19-2009 03:08 PM
Shower Pan and concrete slab plumbing LTempleton Kitchen & Bath Remodeling 2 08-08-2009 01:47 PM
concrete grade/bond beams under slab? jklingel Building & Construction 7 12-22-2008 01:43 PM
Drilling Through Concrete Wall rjordan392 Building & Construction 8 07-23-2008 07:30 PM
cracks in concrete slab causing home sale to fall though! help! bp13 Building & Construction 14 07-04-2007 01:32 AM




Top of Page | View New Posts