Patent ID: 7047846

Claim:
A hand tool comprising a handle and a stem, one end of said handle being provided with a chamber and another end of said handle being provided with pivoting sections; said stem being pivotally connected to said pivoting sections of said handle; one end of said stem being provided with a shank; and characterized in that: the hand tool further comprising a locking unit and a holder, a through hole penetrating said handle being provided in said chamber of said handle; the outer circumference of said holder and the inner circumference of an opening of said chamber being threaded; said handle and said holder engaging each other by their respective threads thereby securing said holder in said chamber of said handle; said locking unit being placed in said through hole; one end of said locking unit being provided with a locking bit; a push rod being provided in said holder; said locking unit being pushed by said push rod; a gear being provided at another end of said stem; internal teeth being provided on the perimeter of said gear; said locking bit of said locking unit being restricted in one of said internal teeth.