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Drilling concrete question.

Old 07-25-2019, 03:36 PM
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Default Drilling concrete question.

Trying to anchor pallet racking to my warehouse floor. was using concrete bits with a regular cordless drill. the first couple of holes went OK but the next few would get harder to the point it would just about quit. New bit same problem. Do I need to get a hammer drill or do concrete bits only last for a few holes?

Will the bits last longer using a hammer drill or do I just need a big bag of bits? I'm looking to make this as painless as possible.

Would some water help out?

Thanks in advance.

Old 07-25-2019, 03:39 PM
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Depends on how many more holes you have to drill. What size? I’m a tool fanatic, so, I’d buy a nice hilti or Makita and do it right.
Old 07-25-2019, 03:40 PM
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Hammer Drill. I can get hundreds of holes out of a single Hilti bit for my TE-60. Actually it’s mostly because they get bent is why they stop working. Not sure how many holes you need to drill but if it’s substantial and you have a Hilti store in town worth a stop.

They are German and far from cheap but when it comes to concrete they are the best.
Old 07-25-2019, 03:42 PM
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Hire or borrow a hammer drill. Nice big heavy one if you have a bunch of holes to do.
Old 07-25-2019, 03:42 PM
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Go rent hammer drill if you don't want to buy one. Only real way to drill in concrete.
Old 07-25-2019, 03:44 PM
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SDS drill is the way to go for sure. I have had good luck with the Bosch version.
Old 07-25-2019, 03:54 PM
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Thanks for the quick reply's. Got about 30 holes to drill. 3/8 inch.
Old 07-25-2019, 04:00 PM
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Originally Posted by Lineside View Post
Thanks for the quick reply's. Got about 30 holes to drill. 3/8 inch.
go grab a cordless 18v drill with hammer function in any brand you already own at HD for around $100. Pick up 2-3 Bosch premium hammer bits. $130-150. And your done easily in a hour or less.
Old 07-25-2019, 04:03 PM
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Originally Posted by Lineside View Post
Trying to anchor pallet racking to my warehouse floor. was using concrete bits with a regular cordless drill. the first couple of holes went OK but the next few would get harder to the point it would just about quit. New bit same problem. Do I need to get a hammer drill or do concrete bits only last for a few holes?

Will the bits last longer using a hammer drill or do I just need a big bag of bits? I'm looking to make this as painless as possible.

Would some water help out?

Thanks in advance.
Yes you do - of course hammer drill bits too
I have bits that have drilled over a hundred holes
Old 07-25-2019, 04:06 PM
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You've got your answers above -
Here's a link to bits
https://www.homedepot.com/b/Tools-Po...23fZpxZ1z0sje7

You can rent hammer drill in local rental places...
Old 07-25-2019, 04:13 PM
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Harbor Freight hammer drill for about $30 is my suggestion.
Old 07-25-2019, 04:47 PM
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Originally Posted by treadlife View Post
Harbor Freight hammer drill for about $30 is my suggestion.
I bought the HF masonry drill bits and used them with a POS B&D Hammer Drill and they worked great.
Drilled a bunch of 1/2 holes in side of old concrete to pin rebar for slab extension. Worked great.
Old 07-25-2019, 04:49 PM
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Also spring the money for the long bit and save your back!
Old 07-25-2019, 06:43 PM
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Use a sds drill huge difference over a hammer drill and buy a good bit. I use mine almost daily to drill 1/2 holes for concert anchor for water mains. Hundreds of holes on the same bit.
Old 07-25-2019, 06:43 PM
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And just hope you don't hit any rebar in the floor.
Old 07-25-2019, 07:20 PM
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Originally Posted by PF-88 View Post
And just hope you don't hit any rebar in the floor.
Hilti bits will go through rebar. Slower than just concrete but you’ll get your hole finished and still have a useable bit.
Old 07-25-2019, 07:28 PM
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Bosh sds
Old 07-25-2019, 07:34 PM
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Looks like hammer drill it is. I agree
Old 07-25-2019, 07:35 PM
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My job requires drilling concrete every day.
Best advice I ever got " let the drill bit do the work".
Too many people think pushing harder on the drill will help. It's like pushing a car with the brakes on. All it does is bend the bit and burn up the carbide tip. Get a hammer drill, let the bit do the work and take your time. I've got bits 5 years old that still work. My hammer drill is 30 plus years old. I live in FL, wanna use it?

Last edited by aboattime; 07-25-2019 at 07:43 PM.
Old 07-25-2019, 07:46 PM
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I'll take my Bosch Bulldog over a cordless hammer drill anyday for drilling multiple holes in a slab. The Bosch goes through concrete like butter. It never ceases to amaze me when I think about the time and effort I've wasted in the past with a cordless hammer drill.

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