How to Saw Straight through the Door Frame

[lhnilsson]

I'm installing ventilation equipment in the bedrooms. 28 holes will be drilled with a 10mm drill bit in a frame that is 95 deep. How do I get the holes to be in a straight line from the outside?

Asking
Lars-Henrik

 

[Milkshaken]

The easiest way is probably to measure from the outside and also drill from the outside...

 

[lhnilsson]

Well, that's not quite what I meant. All the holes should be in a straight line one after the other, both from the outside and inside. The challenge is to saw completely straight both horizontally and vertically.

Lars-Henrik

 

[andersmc]

There are different kinds of jigs that are meant to help one drill at a right angle. Some are intended as aids when you are plugging, like this one http://www.biltema.se/products/product.asp?iItemId=82252.
Clas Ohlson has something they call a "drill guide" which should also work.

 

[gds4me]

I will install ventilation equipment in the bedrooms. 28 holes need to be drilled with a 10mm drill bit into a frame that is 95 deep. How do I ensure the holes are in a straight line viewed from the outside?

Asking
Lars-Henrik

There are drilling templates available for purchase... I am going to install a couple of window vents and there are ready-made metal templates for that. Ask where you bought the vents...