Do you knowthe problem,therearescrewswhere you can notget at it...here is asimple solution:

Takesomebit holders,placethem togetherand youcangetalot deeperscrew.
I think it would be just as cost-effective to use a bit extender, no?
I think this is probably a good example of using what's on hand. If you have these and no bit extender, this is a way to avoid coughing up for an unnecessary piece of kit.

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More by droid1936: hard to reach screw N-railway pine-trees (1/160 scale) 
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