Having problem with install.

[HulkSmash]

EArlier last week you guys helped with methods of install.. thanks.
went there to install and had a few issues...


We're installing F.C.O. sign on a corrugated facade.
We stud mounted, and went to install.. but our bit from the drill keeps slipping on the sloping edges of the corrugated metal part..and won't allow us to drill accurate holes...resulting in our template not lining up.
does anyone have any suggestions to keep the holes straight.. or maybe a better method? Thanks again.

 

[GP]

Can you tap the holes first with a very thin nail?

Then, use progressively larger drill bits, always concentrating on level entry?

 

[StarSign]

Center Punch

 

[CanuckSigns]

Corrugated metal is a nightmare, but the best you can do is buy a nail punch and use it to put a dent in the metal for your drill bit to sit it while it starts, if you are really having issues, you can do like above and drill using a small bit to make the hole, than go back with the proper sized bit.

 

[visual800]

and we have puch a sharpie stright thru the pattern and marked the side of the angle and then came back and drilled out whereas you can start hold at angle and striaghten it up, dont straighten too quick though, you will go thru some bits

corragated metal sucks but its used alot

 

[HulkSmash]

thanks everyone for the advice.

 

[J Hill Designs]

+1 nail punch first

 

[Techman]

nail punch then a center drill.. not a regular drill bit.. Center drill.

 

[ddarlak]

i usually put the drill so it is perpendicular to the surface until the bit starts to bite, then straighten the drill out to perpendicular to the desired surface.

use a bigger hole, i'd say 3/16"-1/4" for an 1/8" threaded stud. The silicone will hold it.

 

[SignProPlus-Chip]

nail punch then a center drill.. not a regular drill bit.. Center drill.

THIS

 

[2B]

nail punch then a center drill.. not a regular drill bit.. Center drill.

+1 best option that we have found

 

[HulkSmash]

Thanks everyone for the help.

Got her up this morning.... these corrugations were deep..