Drill bit

[D4N1EL]

Hi,
I've bought some new ceiling lights, I've read the instructions and it says I need a no.8 size drill bit. This may sound daft but is a no.8 size drill bit 8mm? If not are these drill bit easily available? I've only noticed drill bit sizes in mm.

Thanks
Dan

 

[Trazor]

A number 8 drill is 5 mm dia, this terminology is now seldom used.

What are you drilling into a joist ?

The dia of drill you need will depend on the size of the screw you are using.

 

[foxhole]

You don't need a drill if fitting to standard plasterboard ceilings.

 

[Burnerman]

Letter and number drills haven't been used for ages......its not the lamp cut out size you mean, is it?
John

 

[pinenot]

Recessed lights or surface mounted? ...pinenot

 

[D4N1EL]

Hi,
Sorry for a slow reply, its a bracket that screws to the ceiling then the light sort of clips onto the bracket. It's got screws and plugs with the light, it's going on a plaster board ceiling, am i best just screwing its up?

 

[Diyisfun]

You cant just screw to plaster board, you will need a plug of some sort.

 

[D4N1EL]

Thanks for the reply's guys, I found some long dry wall screws, I screwed straight through the ceiling an into the joist (I hope)