[sdiy] what size countersink?

[cheater cheater]

You can also use a small, ring-type rubber washer, depending on what
your application is - it'll pad, protect the metal, and add
flexibility to the joint.

D.

On Sat, Aug 22, 2009 at 8:26 AM, Andre Majorel<aym-htnys at teaser.fr> wrote:
> On 2009-08-21 13:16 -0700, Nick Liebrecht wrote:
>
>> If you are using metric screws, you want a 90 degree countersink
>> instead of the 82 degree one.  (At least that's what the guy at the
>> tool shop told me last week.)
>
> Don't have the standard but yes, all the ISO screws and
> countersinking bits I've seen have a 90° angle.
>
> Something I forgot to mention : large countersinking bits often
> have a flat tip that does not make them very suitable for small
> screws.
>
> --
> André Majorel <URL:http://www.teaser.fr/~amajorel/>
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