Steadying screws with fingers unnecessary. Crimp in uncompressed spring wire slightly protrudes from one facet of Allen wrench. Compressed spring retains Allen screw. Tool used with Allen-head screws in cramped spaces with little or no room for fingers to hold fastener while turned by wrench.
Screw-Retaining Allen Wrench
NASA Tech Briefs ; 9 , 1
01.06.1985
Sonstige
Keine Angabe
Englisch
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