On 11 June 2011 21:28, gene heskett <ghesk...@wdtv.com> wrote:

> But this means I need a 3 diameter drill.  The 1/8" pilot needs to have at
> least 3" projecting from the screw head seat cutter section, and about 1/2"
> back of that, this seating cutter needs to become at least 0.5" in diameter
> in order to clear the magnetic bit holder carrying the square drive bit.

Sounds to me like a longer, slimmer, drive bit would be a better solution.
http://www.google.co.uk/products/catalog?hl=en&safe=off&client=safari&rls=en&q=extra+long+robertson+screw&bav=on.2,or.r_gc.r_pw.&biw=1332&bih=875&um=1&ie=UTF-8&tbm=shop&cid=6660618130306711378&sa=X&ei=UOPzTf3OOIS08QOk5amqBw&ved=0CGIQ8wIwCA#ps-sellers


-- 
atp
"Torque wrenches are for the obedience of fools and the guidance of wise men"

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