[sdiy] what size countersink?

[Cary Roberts]

>I need to countersink some #6 sized holes (I think I made them 0.125"
>diameter). I am pretty sure they are 82degree angle but not %100 sure
>(I got them from mouser, they are Keystone brand but there was no data
>sheet).
>What size bit do I need to countersink this properly?

http://www.shortrunpro.com/ScrewAndHoleBoltGuide.aspx#Countersinks

Commonly available drill bits have a 118 degree point angle.  The screws you
purchased most likely need a 82 degree countersink.  You're best served by
purchasing a proper countersink bit.


-Cary