E11 drill bit size

[A Master Builder]

What size do I need to drill the holes in my pipe?

[gazmosis[501st]]

The templates that I sent to you in the other thread have the drill bit sizes on them. But all but two holes are 7/16" drill bits. The holes on the top front and bottom front are 1/2 ". The bottom one has the notch for the folding stock but this is optional depending on which stock you go with.

[Marv]

On the top of the Sterling if I recall correctly the hole behind the sight (possibly the one nearest the scope rail - doing this from memory but can confirm later, on my way to work) are actually slightly bigger at 11mm the other holes I think are 10mm.

[Logon]

On the top of the Sterling if I recall correctly the hole behind the sight (possibly the one nearest the scope rail - doing this from memory but can confirm later, on my way to work) are actually slightly bigger at 11mm the other holes I think are 10mm.

 

I think the hole at the sight was 12.4mm and the "cooling" holes are 10.4mm