pbengtsson said:
Preferably, you don't screw at all; insert the magnets, position the disc and make a hole, then screw it in. If there's a mistake, it's relatively easy to adjust the hole with a knife or a rasp. Sometimes a screw can help if you're working alone. But if the cables are already in the junction boxes, you have to be careful; sometimes you have to mark the hole, remove the disc, and finish drilling.
I have a budget model of "Hole in One" with two pins instead of magnets that you press through the disc, and in this model, cables are protected from the center drill. Not directly good for other reasons, but no risk of damaging anything.

Is there a risk of damaging the cabling in the "real" one like those sold by Jula? That is, does the drill go unprotected into the box?
 
myrstack said:
I have a budget model of "Hole in One" with two pegs instead of magnets that you push through the board and in this model, the cables are protected from the center drill. Not directly good for other reasons but no risk of damaging anything.

Is there a risk of damaging the cable in the "real" one that, for example, Jula sells? That is, does the drill go unprotected into the socket?
Oh, I've bought one of those.
Why isn't it good?
 
wanegardh said:
Oh, I've bought one of those. Why isn't it good?
I'm not stating that it's not good. I'm asking if the drill risks damaging the FK that lies in the box if you pull the cables before you plaster.

Normally, with a hole saw, the hole saw itself is outside the box or at most hits the edge if you aim incorrectly. However, you have a centering drill in the middle which can damage the cables if it's not protected against such things. My cheap model covers the tip of the drill, so there's no risk there, but I'm considering buying a model with magnets instead. It's a pain to push points through plaster and aim in between and doing it on OSB boards is a nightmare.
 
Thought Jula sold the "oriktiga" :) Where can one find the cheaper version then?
 
Seems way too simple that way.
More fun to measure and draw, then make holes and see how well it turned out :)
 
While we're on the topic of junction boxes... if you have OSB+gypsum, is it the "double gypsum" boxes you should use then?
 
pjkw said:
While we're talking about junction boxes... if you have OSB+gypsum, are the "double gypsum" boxes the ones you should use then?
Yep
 
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