drill 40mm for sliding door handles

[JanneSjo]

I'm going to put this type of handle on my sliding doors.

It seems to require a 40mm hole.

However, I can't find any drill bits that are 40mm at any hardware store.

Has anyone drilled for something similar?

The handle also fits the handle hole on a regular interior door.

 

[Jan-L]

Clas Ohlson has this drill, 42.5 mm, maybe it works........?
http://www.clasohlson.se/Product/Product.aspx?id=56106793

 

[Eld]

I have seen that Bauhaus sells kvistborrar. Additionally, kvistborrar are available in many different online stores. Search for "kvistborr" or "forstner bit". They come in sizes ranging from 10-100mm. (100mm probably requires a pretty powerful drill...)

 

[JanneSjo]

found a 40mm drill bit at XL-bygg today

I measured a handle and it seems to be slightly conical, perhaps drilling with a smaller diameter would be better.

Has anyone drilled and attached such a handle?

 

[Tiger79]

Got curious..

What kind of doors have you built?

I'm planning to build a wardrobe sliding door wall but also an interior door. Considering building the interior door from two 19mm MDF boards glued and screwed together, it would then be about 1000mm*2040mm, does that work or will it be too heavy?

 

[Spax]

You don't have a milling machine?

 

[JanneSjo]

No, I don't have a router

I have built sliding doors in 19 mm MDF near a sloping wall, so they are 90 cm high and 120 cm wide

I will try to set them on ottoman rollers in aluminum track instead of buying ready-made tracks

However, I am a bit worried that the MDF boards will warp during painting
see this thread

 

[Spax]

Yes, it was me who started that thread

But as I wrote there, mine are still straight after painting.
But you can never be 100% sure it helps....

I used oval handles. But I had a router when I countersunk.

 

[PappasHammare]

Sure as heck, there are 40mm hole saws. Drills are probably harder to find. You're likely looking on the wrong shelf.

 

[Eld]

There sure are 40mm hole saws. Drills are probably more difficult. You're likely looking on the wrong shelf

If you're not going to drill all the way through, there will be post-work with a block plane or chisel to remove what's left in the middle. Moreover, the edges will be much uglier and there will be less precision in the diameter with a hole saw than with a drill.

 

[stilofunk]

Too bad it doesn't work with 42.5mm: http://www.clasohlson.se/Product/Product.aspx?id=56106793

 

[akhagen]

I have some old adjustable contraption for a classic drill. This one is dull and imprecise, but there should be current and sharp options...

http://www.clasohlson.se/Product/Product.aspx?id=56909742

Otherwise, I would recommend a compass+pencil and a good curved gouge. There are margins, and none of the holes are meant to be visible.

 

[JanneSjo]

I used oval handles. But I had a router when I countersunk.

ok don't have a router but maybe should get one

I do have a router attachment for the dremel tool but it's probably for smaller jobs

nice with oval handles

do you think it would be difficult to router for a beginner?

 

[bygga_bo]

It's not a problem to find a 40 mm auger bit at well-stocked "specialists" (i.e., not XL, Bauhaus, or similar). Two examples:

http://www.toolbox.se/produktlista.asp?path=19n-kat56n-kat57n&parameter_varde=40&momsbyte=0
http://www.theofils.se/product.aspx?prodfamid=74500600

(The cobalt drill bit at Theofils costs nearly four hundred kronor and is better than what you need to solve this task. The 130-kronors variant at Toolbox will do just fine).

 

[JanneSjo]

I found a drill at XLbygg (Krauta, Beijer, and the local retailer didn't have it)