In operation, {TAIL ~ the basic V groove} clamping and aligning action described above with a conventional holder/aligner remains the same, but has been improved by significant geometrical modifications: slots 16 16 have been cut completely through and below the V groove 14 in the base 12 to make room for pairs of {HEAD ~ wings} or fingers 22 22 extending outward and downward from the side of the mating V shaped cover 17 
In operation , { TAIL ~ the basic V groove } clamping and aligning action described above with a conventional holder / aligner remains the same , but has been improved by significant geometrical modifications : slots 16 16 have been cut completely through and below the V groove 14 in the base 12 to make room for pairs of { HEAD ~ wings } or fingers 22 22 extending outward and downward from the side of the mating V shaped cover 17
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