How to stabilise a wall plug within a far too big hole?

gilbutre

The bit of my rotary hammer drill (same as that one) rotate with an angle resulting in a horribly bad precision drilling (and holes far too big for the plugs I intend to use). Sidenote: I need this type of hammer because the external walls of my house are too hard for hammer drills.

Is there a way, once the gaping hole is done, to maybe fill it with cement or something and at some point to insert the plug so that when the cement is complete the plug is stable?

Maybe some better solution exists too, I'm open to suggestions.

Mr.Generous

Put the plug in then hammer in some slivers of timber to make it tight. Before nylon plugs were invented we fixed stuff by just using bits of wood hammered in tight. If its a small gap something like cocktail sticks will do, if its very loose (buy a new drill bit) you can use anything up to a pencil size.

The tongue from old floor boards makes great plugging timber if you have any. You can buy plugging compound if you really need it. I wouldn't bother. I think you need a smaller drill bit or one that's not bent. SDS bits come in various sizes. 6mm good for most std plugs.

Ebe_Scrooge

The simplest way would be to mix up a small amount of mortar, fill the hole and let it set. Then you can re-drill the hole.


The only thing I would say - if whatever you're drilling the hole for is pretty heavy, I'd be tempted to fill the hole then drill a different hole an inch or so to the side, if possible. Plugs/screws that are inserted into mortar are not as strong as those drilled into solid brick.

Norman_Castle

Could you use a different drill bit or bigger plugs?

MisterP123

It shouldn't rotate at an angle. Probably a new (good quality) SDS bit will help.

You can always stick some matches in if the holes not too big, or a bigger plug and larger screw.

TheCyclingProgrammer

http://www.wickes.co.uk/Fischer-Wet-%27n%27-Fix-Pack-10/p/511151

Always worth keeping a pack in the toolbox.

Wookey

As MrGenerous says plug it with a piece of timber or dowel, whittle down one end into a slow taper with a chisel or stanley knife and then hammer it into the wall and then chisel it of flush with the wall, you may need to drill a small pilot hole into the plug to give your screw an easier start.

Buy a new drill bit, it sounds like the drill has been dropped onto the drill bit to bend it slightly or something heavy dropped onto it.

Ganga

TheCyclingProgrammer wrote: »

http://www.wickes.co.uk/Fischer-Wet-%27n%27-Fix-Pack-10/p/511151

Always worth keeping a pack in the toolbox.

Good idea,evertime i drill in plasterboard end up with bigger hole.

trailingspouse

From experience of renovating several elderly houses, I would say the traditional solution is old newspaper...

getmore4less

definitely invest in some straight bits so you can drill more accurate sized holes.

could upgrade from a plug to a wall anchor but might be overkill for a lightweight job.

gilbutre

Thanks all for the input! My bit looks flawless and isn't bent or anything. I really don't understand why it fits with an angle, there was no angle last time I used it a year ago or two.