Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Patent
1995-02-15
1995-09-19
Meislin, D. S.
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
81461, 81125, B25B 2308
Patent
active
054507766
ABSTRACT:
In order to remove a one-way fastener of the type having a generally circular head with a flat upper surface portion and a convex upper surface portion, a security fastener removal tool is disclosed. The tool includes a shank having an end to be placed in engagement with the head of the one-way fastener. The end of the shank has a pair of fastener-engaging tips extending therefrom for mating engagement with a corresponding pair of tip-receiving recesses in the head of the one-way fastener. The tool also includes a generally cylindrical collar which is disposed so as to fully surround the pair of fastener-engaging tips. With this arrangement, the collar has an inner surface diameter substantially the same as the fastener head outer diameter, and the inner surface of the collar is adapted to grip the head of the one-way fastener.
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