If you have to do this by digging down under the concrete, here’s an outline of how I would go about it:
- Consider renting a motorized earth auger to drill the actual hole. …
- Use a diamond grinding disc on a demo saw or even an angle grinder to cut through the concrete. …
- Dig the hole & set the post.
How do you cut a hole in a concrete patio?
Use a standard circular saw, equipped with a corundum or diamond blade, for small tasks. For slabs, it’s best to cut through the top inch, then use a sledgehammer to break off the rest. The jagged edge left below the cutting line provides a good rough edge for the new concrete to bond to.
How do you cut holes in concrete for fence posts?
Draw a circle around that hole to mark the outside circumference of the circle you’re going to excavate. Step 2: Drill holes around and along the circumference, spaced an inch or two apart. Drill some more holes throughout the middle area of the circle.
How do you put a post in a concrete slab?
Quote from the video:
Quote from Youtube video: Remove the base and then drill into the concrete using a hammer drill. And masonry drill bits. Move the post support back over the holes.
What is the fastest way to dig a fence post hole?
There’s no question about it — the fastest and easiest way to dig post holes is to use a gas-powered earth auger. Fill the tank with gas, position the auger on the ground, fire it up, hold on tight and watch the soil come streaming out of the hole.
How do you cut a large hole in a concrete slab?
The best way to do it is by boring holes with a coring bit, which looks like an oversize hole saw minus the teeth and pilot bit. In place of the teeth is a smooth or segmented edge studded with tiny industrial diamonds that cut concrete and rebar by means of abrasion.
How do you make a hole in a slab?
Quote from the video:
Quote from Youtube video: Next we can sort at this point until you see the mark click and then you can click at this point. Okay you can go into three models. And it will automatically cut the holes in a slab.
Can an auger go through concrete?
No, an auger isn’t the right tool. Was this concrete used to set the previous posts, or some pre-existing concrete? The best tool I’ve found for busting up concrete like that is a San Angelo bar. Make yourself into a manual jackhammer.
How do you drill into hard concrete?
Quote from the video:
Quote from Youtube video: Don't make the mistake of increasing. The pressure because you will blow out the carbide tip and then basically it's broken I just continue at low pressure wait until you break the rebar.
How do you drill a hole in concrete?
How to Set a Post for a Fence or Deck ·
How do you cut concrete by hand?
Use your dominant hand to grip the back handle and push the blade forward and backward. Begin cutting at the edge of the concrete and slowly follow the chalk line. Don’t press the blade into the ground—let the weight of the blade and saw do the work. Remove the blade every 30 to 45 seconds to avoid overheating.
How do you cut a 2 inch hole in concrete?
Quote from the video:
Quote from Youtube video: During drilling is diamond induced animal segments cut clean holily masonry concrete blocks because they've been laser welded into place they will last a long time.
How do you build a 4 inch hole in concrete?
Quote from the video:
Quote from Youtube video: It's like a 59 dollar drill from home depot is actually a combo it's a drill driver.
