Drilling holes in concrete
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=208954
Printed Date: 19 Nov 2025 at 2:08am
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Topic: Drilling holes in concrete
Posted By: ACinSC
Subject: Drilling holes in concrete
Date Posted: 17 Nov 2025 at 2:43pm
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Drilled 4 today. Brand new concrete bit. Went well for about an inch. Then it was tough. Does a hammer drill make much difference? I have more to do, Thanks
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Replies:
Posted By: Coke-in-MN
Date Posted: 17 Nov 2025 at 2:56pm
Big Difference with a hammer drill -bigger the unit the better and faster the drill works .
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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Posted By: Trawler II
Date Posted: 17 Nov 2025 at 3:27pm
A rotary hammer drill and SDS bit will be a night and day difference. If you have a lot of holes to drill renting a rotary hammer drill and purchasing a bit is the way to go. SDS bits are a bit expensive compared to standard carbide, with a lot of holes to drill they are a bargain.
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"Most people find it easier to believe a simple lie, than the complex truth"
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Posted By: DMiller
Date Posted: 17 Nov 2025 at 4:39pm
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If has Creek rock in the mix is like drilling granite.
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Posted By: ACinSC
Date Posted: 17 Nov 2025 at 6:02pm
Posted By: DougG
Date Posted: 17 Nov 2025 at 6:08pm
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Creek rock and rebar get in the way- take a punch when it stops and try to break the rock- we use Makita battery powered drills and sds bits , they hold up well - and get used hard at work
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Posted By: Pat the Plumber CIL
Date Posted: 17 Nov 2025 at 7:20pm
What size holes are you drilling? Hammer drill and SDS Bits are the only way to go . Like others have said bigger is better. Rentals can pay for themselves quickly.
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You only need to know 3 things to be a plumber;Crap rolls down hill,Hot is on the left and Don't bite your fingernails
1964 D-17 SIV 3 Pt.WF,1964 D-15 Ser II 3pt.WF ,1960 D-17 SI NF,1956 WD 45 WF.
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Posted By: omahagreg
Date Posted: 17 Nov 2025 at 9:20pm
Years ago I had almost 60 holes to drill in 2 commercial bathrooms-tile and cement. I started getting 12 holes drilled but wasted 4 bits-masonry in a hammer drill. I said screw it and went straight to Hilti-bought a new SDS drill and their bits! They have a 2 carbide tip where most others are a one carbide tip. Just used one bit on all the rest!
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Greg Kroeker
1950 WD with wide front and Freeman trip loader
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Posted By: ACinSC
Date Posted: 18 Nov 2025 at 6:36am
Plan B . Back out this morning for wedge anchors. One tapcon wouldn't hold. Feel sure I messed up the hole putting too much 'fat boy' on the drill
Drilling 1/4" holes. Thanks
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Posted By: Hubert (Ga)engine7
Date Posted: 18 Nov 2025 at 7:03am
Not too much fat boy on the drill but when trying to get through a piece of rock with a regular drill will cause the bit to wander. Hammer drill eliminates a lot of the wandering.
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Just an old country boy saved by the grace of God.
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Posted By: Gary (sw Wis.)
Date Posted: 18 Nov 2025 at 7:47am
Rotary hammer drill is the key. Not a hammer drill. And then let it do the work, don't push to hard you will be surprised.
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190XT - D17 - D14 - WD45 w/loader - WD - (2)B110 - 616H - 610 - B-208 - WD with 190 Mounted Corn Picker - All Crop 60
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Posted By: steve(ill)
Date Posted: 18 Nov 2025 at 7:51am
i have epoxied a few studs into concrete holes... set for 24 hours and then tighten the nuts... had good luck..
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Like them all, but love the "B"s.
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Posted By: ACinSC
Date Posted: 18 Nov 2025 at 8:27am
Plan B didn't work
Guess I need an anchor for a 5/16 hole or maybe Steve's suggestion? Thanks
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