Patent ID: 9550285
Date: 2017-01-24
CPC Classifications: B25B

Claim:
1. A hand tool comprising: a shank and a handle connected to a first end of the shank, a fixing member connected to a second end of the shank, an isolation layer coated on an outside of the shank, an annular groove defined between the isolation layer and the fixing member, a polygonal room defined in a distal end of the fixing member and an insertion hole defined in an inner end of the polygonal room, at least one notch defined in a wall at the distal end of the fixing member; a socket connected to the fixing member and having a lip formed on an end thereof, at least one positioning member extending from the lip and located in the at least one notch of the fixing member, a guide member located beside the at least one positioning member; a locking member connected to the socket and having a through hole, at least one recess defined in an inner periphery of the through hole, the guide member of the socket engaged with the at least one recess of the locking member, two flexible blocks extending from the inner periphery of the through hole of the locking member; a positioning member connected to one side of the locking member and having a protrusion extending therefrom, the protrusion inserted into the through hole of the locking member and having a space defined therein, a ridge extending from an outside of the protrusion and contacting the lip of the socket, the protrusion having two first passages and two second passages, the two blocks engaged with the two second passages, the positioning member having a polygonal reception hole which communicates with the space, and a bit having an insertion end and a function end, the insertion end inserted into the reception hole and having a locking groove, the blocks engaged with the locking groove.