| 摘要 |
A hand tool includes a handle (10, Figure 1) connected to a shank 1 and a fixing member 11 with a polygonal recess 15. An isolation layer 12 is coated on the outside of the shank and an annular groove 13 is defined between the isolation layer and the fixing member. A socket 2 has a lip 21 which has at least one positioning member 22 to be engaged with a notch 17 of the fixing member. A guide member 23 is located beside the positioning member. A locking member 3 is connected to the socket and has a recess 32 with which the guide member is engaged. The locking member has two flexible blocks 33. A positioning member 4 has a protrusion 40 inserted into a through hole 31 of the locking member and has a ridge 42 contacting the lip of the socket. The protrusion has two first passages 43 and two second passages 44. The two blocks are engaged with the two second passages. The positioning member also has a polygonal reception hole 45. A bit (5, Figure 1) is inserted into the reception hole. The blocks engage with a locking groove 52 on the bit. |
