Different taper stud remover/installer

A stud tool for removing or installing a threaded stud threadably to an associated stud mounting member, said tool comprising:

• an elongated cylindrical sleeve member having an internally threaded gripping end and an internally tapered stud locking end, said internal taper extending a portion of said sleeve member;
• a cylindrical pilot member having a closed drive end and an internally threaded bore end, said bore of variable dimension to receive and correspond to associated variously sized studs, said internally threaded bore end having an external angle of taper less than the internal angle of taper of said sleeve member, said angle of taper increasing along a portion of said pilot member as it is directed toward said internally threaded bore end, said bore end having multiple finger splits directed from said open end to said closed end, whereby in use said pilot member is co-axially disposed in said sleeve member with said bore end of said pilot member threaded onto the end of and associated threaded stud;
• and
• a cylindrical locking plug member having a driving end and an externally threaded mating end adapted to engage said internally threaded gripping end of said sleeve member and to axially abut said closed end of said pilot member, whereupon rotating said locking plug member within said sleeve urges said pilot member co-axially along said sleeve member toward said bore end until said external taper of said pilot member engages the internal taper of said sleeve member thereby forcing said finger splits on said pilot member to grip and frictionally lock onto the free end of an associated threaded stud within said sleeve, whereupon counter-rotation of said gripping end of said sleeve member, the associated threaded stud is unthreaded from the associated stud mounting member, whereby said plug member being rotated in the opposite direction allows said taper of said sleeve member and said taper of said pilot member to be disengaged by hand, thereby releasing said finger splits on said pilot member, allowing the associated threaded stud to be unthreaded from the tool.

A stud inserting tool for inserting a threaded stud into an associated stud mounting member, said tool comprising:

• an elongated sleeve member having an internally threaded gripping end and an internally tapered stud locking end;
• a pilot member having a closed drive end, and an internally threaded bore end, said internally threaded bore end having an external angle of taper less than the internal angle of taper of said sleeve member, said angle of taper increasing as it is directed toward said internally threaded bore end, said bore end having multiple finger splits directed from said open end to said closed end, whereby in use, said pilot is disposed in said sleeve member, with said bore end of said pilot threaded onto the end of an associated threaded stud;
• and
• a plug member having a driving end and an externally threaded mating end adapted to engage said internally threaded gripping end of said sleeve member and to axially abut said closed end of said pilot member, whereupon an associated threaded stud is threaded into said bore end of said pilot member and said plug member rotated within said sleeve to urge said pilot member toward said bore end until said external taper of said pilot member engages the internal taper of said sleeve member, thereby forcing said finger splits on said pilot member to grip and frictionally lock onto the associated threaded stud, whereupon rotation of said gripping end of said sleeve member, the mounting end of the associated stud protruding from said tool is threadably received into the associated stud mounting member, whereby said plug member being rotated in the opposite direction allows said taper of said sleeve member and said taper of said pilot member to be disengaged, by hand, thereby releasing said finger splits on said pilot member and allowing said pilot member to be unthreaded from the mounted stud.