Screwheads, was: 5" floppy?.

[Jules Richardson]

Chuck Guzis wrote:
> On 1 Dec 2008 at 10:48, Paul Koning wrote:
> 
>> Correct screwdrivers can be found in one of two ways, depending on the
>> size you need.  For the small sizes, get watchmaker screwdrivers.  For
>> larger sizes, get gunsmith screwdrivers.  Both have hardened tips,
>> hollow ground so the point that fits in the slot of the screw has
>> parallel sides, not tapered sides.  With those you can work those screws
>> without damaging them, even if they are quite tight.
> 
> Another way to find larger HG sizes is to get a (good) set of power-
> drive bits that will fit a screwdriver socket handle. 
 > Although this
> has its problems with getting into tight spaces, sets of hollow-
> ground hardened power bits are comparatively easy to find.

Yep, they certainly seem in plentiful supply.

re. watchmaker's screwdrivers, I've had a lot of luck with the cheap ones from 
bargain stores to be honest. I bought a set many years ago in the UK, figuring 
I'd buy a 'proper' set ASAP - which I never did, and the cheap set's still 
going strong. Then I did the same thing in the US a few years ago, and those 
too have seen a lot of use with no appreciable wear (I did kill one of the 
flat-blades a while back, but that was down to user error :-)

cheers

Jules