Dave SD
Very handy for getting nuts on in awkward places. When I was at Plessey, all the biddys on assembly used 'em.
Do have a downside tho'. One of 'em swiped a bluebottle away from her face, and sliced her fizzog, having forgot she had it on !!
The more uncharitable amongst the staff declared it an improvememt ....

Dave BC