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44 votes
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How to drill through wall without hitting boiler on the other side

Buy a drill stop to screw onto your bit, and set it to the thickness of the wall. Some drills also have a built-in stop that can be adjusted. If you don't know the thickness of the wall, then just ...
Evil Elf's user avatar
  • 3,894
42 votes
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What is the technical term for the rings that protect holes for electrical through woodwork like cabinets?

Grommets Yeah, one-word answers are not ideal. But a quick search confirms that this is a standard industry term for these objects.
manassehkatz-Moving 2 Codidact's user avatar
34 votes
Accepted

Metal braided cord in the wall

That's plaster, not drywall, and you've encountered metal lath. It was commonly used at corners and other vulnerable locations to add strength and crack resistance. It won't be a problem to cut a ...
isherwood's user avatar
  • 140k
31 votes
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What bit should I use to drill a two inch hole in a solid concrete wall?

Hire a core driller. Trust me and do it. You will regret doing this yourself and the cost will seem like nothing in comparison to your struggles with drilling a hole that size in solid concrete. ...
T Taylor's user avatar
  • 364
27 votes

Hole dug from underneath basement floor

The hole is from something that used to go through the concrete. Check it out. There is a circular concrete ring around that hole. Here is the original and I outlined ring in yellow. A thing ...
Willk's user avatar
  • 6,613
25 votes

How to drill through wall without hitting boiler on the other side

Don't. You'll ruin the cable. As Nelson points out in the comments, CAT5 cables have a turning radius of 1 inch to avoid damage to the cable. In a scenario where the boiler is only 2cm from the wall, ...
nick012000's user avatar
24 votes

Hole dug from underneath basement floor

Mongolian Death Worm Pour 13.7 oz of Diet Dr. Pepper into the hole to keep the worms away, remove the white glue and other foreign materials, and then patch normally. If necessary, fill the hole with ...
gnicko's user avatar
  • 5,615
23 votes

How can I seal 8 inch round holes in my siding?

I would procure a sheet of aluminum or steel (available at home improvement and hardware stores), fold a suitable hem at the bottom, and slide it up behind both courses of siding (above and below the ...
isherwood's user avatar
  • 140k
20 votes

How can I drill a grommet hole in my Ikea desktop?

Of course you can, and it's very easy to do. All you need is an appropriate hole saw. Drill from the top down. If you can, hold or clamp a piece of scrap wood under where you are cutting. That ...
Grant's user avatar
  • 5,669
18 votes
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Using Forstner bits instead of hole saws

I'm not sure why someone told you that you can't drill all the way though with a Forstner bit, but in my opinion, they are incorrect. These bits excel at creating a flat-bottomed hole but will also ...
jwh20's user avatar
  • 23.4k
15 votes

What bit should I use to drill a two inch hole in a solid concrete wall?

Use a diamond core drill to get a nice clean hole. If you use a hammer drill and carbide drill bit the concrete on the opposite side is going to splay and look like like a beaver was chewing on the ...
user1946891's user avatar
14 votes

What is the technical term for the rings that protect holes for electrical through woodwork like cabinets?

The two types of grommets I use (note: none of these names are official, the official name is just "grommet" which is why there are pictures of each): Black plastic electrical grommet I'll ...
Fredric Shope's user avatar
13 votes

Hole dug from underneath basement floor

I would agree that based on that ring, it looks likely that something used to go through the concrete. However, I do believe there are cases where an animal can indeed chew through concrete. I was ...
susie derkins's user avatar
11 votes

Moving Faucet Hole in Granite Countertop?

Yes, drilling a new hole is possible, just a matter of using the correct tools, or in your case hiring a contractor who knows how and has the correct tools. For a faucet hole that's usually a diamond ...
Ecnerwal's user avatar
  • 220k
9 votes

How to temporarily repair a hole in a window pane?

I'd do the packaging tape and call it a day. If the glass is clean it'll hold no problem. If you're really worried, silicone or similar would fill the void between the tape. Then, start looking for ...
isherwood's user avatar
  • 140k
9 votes

How can I tap continuous threads through opposing tubing walls with a tap that's too short?

I would not tap the tube, I would redesign the joint. You're using a bolt as something it isn't and that's the problem. Your design intends to grind the bolt down anyway, to make it flush with the ...
Edwin Buck's user avatar
  • 2,213
8 votes

What bit should I use to drill a two inch hole in a solid concrete wall?

For a bore hole that large, your best bet is a water-cooled diamond bore. There are many rental centers that can rent you the tool and the bore.
Machavity's user avatar
  • 25.3k
7 votes

What is the right way to clear the drilled plug out of a hole saw?

You can also drill halfway through the board, then turn it around and drill from the other side using the pilot hole to properly align the drill. The scrap piece will end up only halfway in the hole ...
Mark's user avatar
  • 3,841
7 votes

Can I fill a drywall hole with something and reuse the hole?

You haven't said how big the hole is or what it's for, but I think I understand your question, how a little filler might not be as strong as untouched drywall. It depends on what it's filled with, but ...
Xen2050's user avatar
  • 526
7 votes

What bit should I use to drill a two inch hole in a solid concrete wall?

I did this once. All of the previous answers are valid, but if you're trying to do this through an 8" or thinner concrete wall "on the cheap", don't mind investing a significant chunk of time, and ...
Timerider's user avatar
7 votes
Accepted

How to install chandelier fixture in ceiling hole that is too big?

The metal bracket in the picture is meant to be secured with screws into those 2 holes you see facing downward in the electric box. Usually those are 8-32 pitch machine screws. Those slots in the ...
Kyle's user avatar
  • 4,843
7 votes
Accepted

Can I drill through chemical anchor resin?

Yes, you should be able to drill the resin/epoxy/plastic with a general purpose drill bit. If you use a smaller drill bit you should be able to just drill screw-tip clearance beyond the plugs ...
Ecnerwal's user avatar
  • 220k
7 votes
Accepted

Cut too big a hole in drywall for socket

This won't be too big once you install the old-work junction box you appear to have decided you don't need. image source https://images.homedepot-static.com/productImages/32809eab-094f-44e1-9f37-...
Ecnerwal's user avatar
  • 220k
7 votes

How can I seal a hole in a concrete foundation wall for flex tubing?

As a masonry wall, the obvious would be mortar of some sort, injected and packed around and between the tubes. If you want to add a waterproofing layer, do that after the mortar cures. Given the tight ...
Ecnerwal's user avatar
  • 220k
6 votes
Accepted

Can I fill a drywall hole with something and reuse the hole?

Joint compound usually bonds fairly well to the gypsum inside drywall panels. However, you must get it thoroughly filled to make good contact. Also, standard joint compound shrinks substantially, so ...
isherwood's user avatar
  • 140k
6 votes
Accepted

How can I repair the rust penetration in my air compressor?

I highly recommend against attempting to repair a tank that handles compressed air at over 100 PSI. Failure could be impressive and catastrophic. None of the liquid repairs designed for fuel tanks or ...
isherwood's user avatar
  • 140k
6 votes

How can I seal 8 inch round holes in my siding?

I would use a pice of plastic like from a binder and slip it up under the upper shingle and tape it for a temporary quick fix. I would not use a towel as any moisture that gets on the towel will be ...
Ed Beal's user avatar
  • 103k
6 votes
Accepted

Drilling through bottom plate for conduit

The check in the plate is not a big deal (it's off-axis to most of the loading), and drilling a 1" hole through it will not aggravate it. Conduit is indeed the best way to run network wiring, ...
Ecnerwal's user avatar
  • 220k
6 votes

How can I tap continuous threads through opposing tubing walls with a tap that's too short?

I would find a bar that slides inside the tube you have and clamp it so it does not move. Then I would mount the tube in a vise and drill through the tube and bar completely. Once the hole is cleaned ...
Solar Mike's user avatar
  • 27.7k
5 votes

Why is there a hole in my basement wall?

The clue here is that the hole leads into an area that is under another part of the upper building structure. It is highly likely that the corresponding part of the building in that area does not have ...
Michael Karas's user avatar
  • 65.1k

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