How do I drill a level hole ?

[2scoops0406]

Yeah, put a washer on the drill bit, if the washer moves forward, you're drilling down. if it move backward you're drilling up. When there is no movement, you're level.

 

[bathroomswap]

Yeah, put a washer on the drill bit, if the washer moves forward, you're drilling down. if it move backward you're drilling up. When there is no movement, you're level.

Ah, finally a good tip ! Many thanks. And petewood, thanks for the backup of my original plan !

For the question of what is it for, see:
//www.diynot.com/forums/viewtopic.php?t=31823

 

[Hitachimad]

Surely, when the drill turns, the washer will move along the flutes

 

[2scoops0406]

You place the washer on the smooth shaft

 

[petewood]

I beg your pardon?

I thought I was looking at the wrong forum for a minute!

 

[2scoops0406]

Hmm, maybe that should have been shank

 

[glocko]

Is it not advisable to have a slightly downward direction from inside to out to prevent water ingress?

 

[masona]

Not really, I always drill slightly downward.

 

[glocko]

That's what I meant Masona....
Is it not.....advisable (isn't it?)

rather than

Is it...not advisable?

Well I knew what I meant!!!!

 

[masona]

Aha!

Yes but nothing to do with water ingress. I use sealant under the screw head for outside if that what you mean

 

[oilman]

what are you drilling the hole for thats so critical?

Exactly. If its for something like an overflow pipe, it should slope downwards anyway.

 

[sluggusthifrog]

If the drill has a (relatively straight) depth gauge and positionable support handle, try tying a plumb line to the gauge and keeping the plumb lined up with the support handle (in down position).

 

[cajar]

can't think of anything that would need it so critically level

 

[phatboy]

After nearly 9 years, I reckon it all got sorted.......