taping a muzzle break

[raildog]

I need to tap a muzzle break for a AR15 I know the thred is 1/2-28 i have a tap on the way did the math comes out to between 29/64 and 15/32 and to get even closer 11.8mm have anyone done this and what did you use?

[MacGyver]

What brake are you starting with that's smaller than 1/2x28?

I've always used 29/64"

[raildog]

It's called the raildog tanker I got bored at work and had some scrap billet aluminum under my bench so i went to whittling I'll post some pic when i get it done

[peejman]

15/32 or 29/64 should work. Use good tapping fluid...

http://www.fastenersinc.com/Images/fasteners_tap_drill_chart.pdf

[No_0ne]

Opened this thread expecting to see something like this:

 

[nightrunner]

That has to be the quickest way to double the value of your glock I have ever seen.

[raildog]

Maybe not dubbed. Did not use the tacticool duck tape in OD green or camouflage

[gunwhatgun]

If I understand cor.rectly and you are using aluminum, then go 29/64.