[Elecraft] OT: more than you should ever want to know about Screwhead Types

[Paul at N4LCD.com]

DOUGLAS ZWIEBEL wrote:
>I have to admit, Reid and Prince as well as Pozidriv were new to me.
>Here is a quick reference page.  Amazing...who knew?
>
>http://www.lara.com/reviews/screwtypes.htm
>
>de Doug KR2Q

Very interesting page.

I'd been aware of Reid and Prince for over 50 years, but hadn't heard 
anyone mention them in quite a long time.

One curious thing is that they use the term "Square Recess" instead 
of "Robertson."
I'd always heard them called Robertson.
I believe it was McFeely's in Lynchburg, Virginia that was 
instrumental in reviving interest in the Robertson bit.
http://myword.info/sendword.php?sq_drive_1-a