Removal tool for tangless helically coiled insert

Details Removal tool for tangless helically coiled insert Removal tool for tangless helically coiled insert

B - Operations, Transporting

23

G

10/25

B23G 1/00 (2006.01) B25B 27/14 (2006.01)

Patent

CA 1232715

ABSTRACT A removal took for a tangless helically coiled wire insert of the type used for tapped holes in parent material that is generally softer than a fastener being screwed into the tapped hole, whereby a mandrel having a threaded lead portion and a pivotable pawl inserted in a groove below the threaded portion so that the pawl engages a recess of the trailing end of the insert, in order that the insert may be extracted from the tapped hole. the pivotable pawl is automatically disengaged from the insert when the mandrel is pulled back, allowing the mandrel to free spin out of the tangless insert.

474841

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