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18 votes

How can I hang heavy bikes under a thick wooden shelf?

You can store bicycles vertically with the rear wheel resting on the ground: You don't need to lift the bike to hang it The fastener doesn't need to hold the full weight of the bike, only prevent it ...
bobflux's user avatar
  • 10.3k
16 votes
Accepted

How to drill a hole into a thin concrete wall without breaking off pieces from the other side

My answer would be: Don't attempt. There are basically two ways of drilling concrete: With hollow bits, but this usually requires water cooling, which might not be what you want. With power/pneumatic ...
yo''s user avatar
  • 685
15 votes

What drill bit should I use to drill a 2-1/2" hole through 8" of concrete?

Core drill, preferably wet. Look into rental for the tool. If doing it with a dry bit, stop often to vacuum the dust out and allow the bit to cool. If you overheat diamond it either turns to charcoal ...
Ecnerwal's user avatar
  • 222k
14 votes
Accepted

How do I drill a 60cm hole in a tree stump, 4.4 cm wide?

Image source, no endorsement implied Ship augur bit. This one is 44.45mm diameter, with 30cm of flutes, so you'll need an extension (and lots of pulling it out to clear chips) to drill your 60 cm hole....
Ecnerwal's user avatar
  • 222k
11 votes

How do I drill a 60cm hole in a tree stump, 4.4 cm wide?

Update: @ecnerwal's answer to use a ship auger is a better choice. Trying to drill a hole that deep that needs to be very straight to accept a post, a forstner bit will wander, while a ship auger ...
Ken Carlson's user avatar
10 votes

How to drill a hole into a thin concrete wall without breaking off pieces from the other side

Something that is very common in wood working is to back the piece you want to drill a hole into with another scrap piece of wood. Tearout happens at the back of the work piece when the drill ...
YPOC's user avatar
  • 200
10 votes

How can I hang heavy bikes under a thick wooden shelf?

Your question is "How can I hang bikes under a thick wooden shelf?" (I point this out because others have proposed alternatives for bike storage that reduce but do not eliminate footprint ...
MadMonty's user avatar
  • 1,606
7 votes

Restore capacity of cordless drill batteries (NiMH)

NiCds &/or NiMHs abandoned in the attic for years (or anywhere else for years) are recycling fodder, nothing else. Price new batteries. Then either buy them, or decide that buying a whole new tool ...
Ecnerwal's user avatar
  • 222k
6 votes

How to drill a hole into a thin concrete wall without breaking off pieces from the other side

If you want to minimise the chances of breaking out then you need to use a drill on a stand where you can control the feed rate and use minimal pressure to achieve the cut. However, even an odd lump ...
Solar Mike's user avatar
  • 27.8k
6 votes
Accepted

How can I fix a loose TV mount screw on clay hollow brick?

What not to do: When putting an anchor for a heavy load into hollow brick you really want the plug to grab into at least one inner wall. The plug in the picture is too short. can I reuse the plugs ...
bobflux's user avatar
  • 10.3k
5 votes

How can I remove this stuck auger bit when there’s not much room?

If you can disengage the drill motor and ninety degree drive, using a pair of clamping pliers (ViseGrips™) or a suitably sized wrench to fit the end of the drill bit may provide you with sufficient ...
fred_dot_u's user avatar
  • 11.1k
5 votes
Accepted

2x non terminated ethernet cable - size of drill bit

Cables are a bit squishy, so two things matter: Area Diameter The area of a 8mm (diameter) hole is 4mm2 * pi = 50mm2. To have 100mm2 we need an 11.2mm hole. This is may not be big enough, as the ...
vidarlo's user avatar
  • 1,960
5 votes

Can I hang a picture frame on drywall?

A "quite light" picture frame can certainly be hung using hollow-wall anchors. The confusion about your situation aside, it's not a concern. The package on most such anchors will list a ...
isherwood's user avatar
  • 142k
4 votes

Can I hang a picture frame on drywall?

For something as light as a picture frame, I'd just bang a panel pin in at 45°. I've a houseful of pictures on the walls, some as wood-framed canvases as big as 120 x 80cm - which get 2 nails, mainly ...
Tetsujin's user avatar
  • 11.5k
4 votes
Accepted

Marking out metal tubing

Immobilize the tube on a flat surface, then elevate a pencil on a block to a fixed height above that same surface (the writing tip should be at about half the tube's diameter). Slide the block and ...
popham's user avatar
  • 10.5k
3 votes

Can I run a second exterior coaxial cable to replace a problematic one?

For legal and financial reasons, you are barking up the wrong tree. Legally, you probably can't penetrate the manifold as it's not your building. This turns out to be the easiest part though. And you ...
AdamO's user avatar
  • 994
2 votes

Is this cracking after drilling serious?

Those are hairline cracks, and the location is exactly where you'd expect them. They are the normal result of a house settling. When you drilled the holes, you just allowed the stress to be released. ...
Cheery's user avatar
  • 7,210
2 votes

i have a drill driver that stops working when held at various positions

Usually a problem with the battery contacts. Make sure the battery fits snuggly, with no play. If the drill has spring-like contacts, extend the springs just a little bit so that they are always ...
Cheery's user avatar
  • 7,210
2 votes

How do I drill a hole in a brass register vent cover?

Any metal bit will do. The trick is to use a center punch ($4 tool) an then some cooling fluid while drilling. WD-40 works as cooling fluid.
Cheery's user avatar
  • 7,210
1 vote

How to fit a mirror to this wall without drilling?

If you mean for the mirror to cover that cut-out in the wall, easiest would be to cut a piece of plywood, or make a frame from small lumber, that has a sliding fit into the hole, with perhaps a cm ...
DrMoishe Pippik's user avatar
1 vote

Drilling second hole very close to existing one in perforated brick, for hanging a heavy weight

You can move the heater down a few centimeters, drill new holes wherever you think they will work, and you flexible connectors to connect the existing water pipes or cut them to the right legs. You ...
jay613's user avatar
  • 41.9k
1 vote

Drilled hole behind drywall and hit metal

I didn't watch the video... But generally speaking there are 2 types of pieces of flat metal one can find in a well constructed home. joist hangers. These are located at the top of walls and keep ...
Questor's user avatar
  • 936
1 vote
Accepted

re-use self-drilling-screw hole

Self-drilling screws cut a hole sized for the screw shank. The threads still self-cut. Therefore, assuming no initial overtightening or other abuse, they can be reinstalled with minimal loss of hold. ...
isherwood's user avatar
  • 142k
1 vote

re-use self-drilling-screw hole

There are generally three methods to deal with a screw that doesn't hold: Fill the hole This generally works well with thick pieces of wood, typically using toothpicks and glue. Not usually a ...
manassehkatz-Moving 2 Codidact's user avatar
1 vote

Stuck allen bolt - out of ideas

A cobalt drill bit will work. A carbide bit would work faster, but the cobalt bit will be more forgiving against breakage. Noting the 10.9 stamped on the bolt head, ASTM F568 specs the hardness of 10....
popham's user avatar
  • 10.5k
1 vote
Accepted

How can I remove this stuck auger bit when there’s not much room?

Several options from cheap to expensive. Block of wood and pry bar with drill in reverse if engaging like crip suggests. Vice Grips like fred.u suggests. Crow foot socket with short extension bar and ...
Fresh Codemonger's user avatar
1 vote

Marking out metal tubing

Hold the tube to the floor so it doesn't roll, and mark on each end the spot that touches the floor, and that gives you a reference on each end to know where the same location around the tube is ...
Milwrdfan's user avatar
  • 4,967
1 vote

Can I hang shelves on a brick wall from the mortar, not the brick?

Unless you are placing a lot of weight on the shelves mounting in the mortar would be prefered. Be sure you use the appropriate anchors. The directions will give you information on the size, number ...
Gil's user avatar
  • 7,011
1 vote

What have I drilled into?

Some kind of aggregate bound together with clay. Is there a chimney going up behind the wall? If yes, then you ruptured the flue and risk fumes coming into the house. If you have access to the ...
Cheery's user avatar
  • 7,210
1 vote

The CHUCK on my bench-top drill press slips. (Not the bit in my Chuck). How do I fix this?

you don't, other than by getting something better than craftsman there's a reason sears went bankrupt and sold off craftsman As of May 2023, there are 11 total Sears stores remaining, with 10 in the ...
ron's user avatar
  • 1,208

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