Ciao a tutti,
L’edificio è degli anni ’70. Sto cercando di perforare appena sopra la finestra e ho colpito qualcosa di duro immediatamente dopo 1,5 cm. Qualcuno sa cosa potrebbe essere lì che mi impedisce di andare oltre?
È "autunno"Linter o trave? Anche se è uno di questi (metallo o cemento), ho provato a perforare con bit di metallo e muratura usando il trapano a martello. Sono solo confuso, cosa sono rimasto a sinistra per provare?
https://www.reddit.com/gallery/1n3zazj
di nvnvashisth
12 commenti
I guess it’s a concrete ceiling. If so, it might be a bad idea to drill there. 🤷♂️
I would ask your landlord for more information.
Always use a metal detector before drilling. Wires, pipes, girders, you need to know whats in the wall
~~Always use a metal detector before drilling. Wires, pipes, girders, you need to know whats in the wall~~ Reddit bug
Probably you hit a steel rod of the lower reinforcement layer of the ceiling construction.
It‘s probably rebar. Harmless. There are Youtube tutorials how to drill through rebar. You basically need the right machinery and take your time.
That is no typical location for a gas/water line. If it was electric wiring, you‘d already be through. German residential housing in high rises is typically steel-reinforced concrete, not steel frame. Therefore girders are unlikely.
Maybe consider closing that hole again and drill a few centimeters diagonally from there.
you used a Schlagbohrer, try a Schlaghammer instead (goes through walls like butter)
Depends what drill you have. Mine wasn’t powerful enough to go through the concrete. When I got a proper boring drill it would go through
Concrete or rebar. You may need a more powerful drill with hammer function
I’ve had similar issues and I think it’s certain kinds of stone. My solution ended up being having to buy carbide tipped bits and even then it just took time and wrecked my shoulder.
Well, did you first try with the hammer function on and full power, to press into it and see if you can drill? Are you using the drill bits on the far right of the picture?
Stahl/Beton Drill with a machine that has SDS quick release connection. Look for “bosch expert sds plus” drills. You can use the drill on a regular machine but it will wobble a bit.
It’s either rebar or concrete. If it’s the first one, bad luck. If the latter, get a glass of water to cool down the drill bit and go nuts with the hammer drill.