Patent ID: 6009779
Filing Date: 2000-01-04
Classification: B25B

Abstract:
A screwdriver set for tightening or loosening a fastener, comprised of:a handle having a shaft with male mating threads;at least two extension shafts, each of said at least two extension shafts having a respective length, each of said at least two extension shafts having respective male mating threads and female mating threads for coupling to the handle and to another one of said at least two extension shafts, each of said at least two extension shafts having a textured intermediate surface thereon, each of said at least two extension shafts having wrench mating means adapted to receive a wrench for turning said at least two extension shafts and being arranged between the textured intermediate surface and each said respective male and female mating threads; andat least two tips shaped for cooperating with the fastener for tightening or loosening thereof, each of said at least two tips having female mating threads for coupling to the handle or one of said at least two extension shafts, each of said at least two tips having a respective different shape for respectively cooperating with a respective different-shaped fastener for tightening or loosening thereof, and each of said at least two tips having respective wrench mating means adapted to receive the wrench for turning said at least two tips.