Patent ID: 7387051

Claim:
A tool device comprising: a tool shank including an engaging hole formed in one end of said tool shank, and said engaging hole including a noncircular cross section, said tool shank including an orifice formed therein, a socket member slidably engaged into said engaging hole of said tool shank and including a noncircular outer peripheral portion for engaging with said noncircular engaging hole of said tool shank and for allowing said socket member to be rotated or driven by said tool shank, said socket member including a bore formed therein and having a noncircular cross section, said socket member including at least one recess formed in an outer peripheral portion thereof, and including at least one stop extended into said at least one recess of said socket member and located at one end portion of said at least one recess of said socket member, and including a plurality of flat surfaces formed in said outer peripheral portion thereof, and said at least one recess being formed and located between adjacent flat surfaces of said socket member, means for biasing said socket member outwardly relative to said engaging hole of said tool shank, and said biasing means including a spring member engaged into said engaging hole of said tool shank for applying a spring biasing force against said socket member, a follower slidably received and engaged into said engaging hole of said tool shank and disposed between said socket member and said spring member, said follower including a cavity formed therein for receiving one end of said spring member, and said follower including a space formed therein, a magnetic attractive member attached to said space of said follower and acted with said socket member for attracting said socket member to said follower and for preventing said socket member from being disengaged from said tool shank, and means for slidably anchoring said socket member to said tool shank, said anchoring means including a detent received and engaged into said orifice of said tool shank and extended into said engaging hole of said tool shank for selectively engaging with said at least one recess and said at least one stop of said socket member and for slidably anchoring said socket member to said tool shank.