T-bar type hand tool

A hand tool comprising:

• a first part having a through hole defined radially through a first end thereof and a first connection portion defined axially in the first end of the first part, the first connection portion communicating with the through hole which is a circular hole, an axis of the first connection portion being perpendicular to an axis of the through hole, the first connection portion being a rectangular recess, an inner end of the first connection portion having a first recess defined therein, a second connection portion formed on a second end of the first part and being a rectangular head, the first end of the first part having an outer periphery which has a first knurled portion defined therein;
• a second part having a circular cross section and movably extending through the through hole, the first part being perpendicular to the second part, the second part having multiple engaging portions defined in an outer periphery thereof, each of the engaging portions being a groove, one of the engaging portions located at a mediate portion of the second part, each of the engaging portions being movably located corresponding to the first recess, an end face defined in each of two ends of the second part and being a curved face, when the second part moves to a position relative to the through hole, either of the two end faces is received in the through hole;
• a first spring and a first bead received in the first recess, the first bead being biased between the first spring and one of the engaging portions of the second part to position the second part;
• a rotary member removably connected to the first part and having a third connection portion formed on a first end thereof, the third connection portion connected to the first connection portion, the third connection portion being identical with the second connection portion, the rotary member having a tube extending from a second end thereof, the tube having a second recess defined in a distal end thereof, a second knurled portion defined between the third connection portion and the tube, an outer diameter of the second knurled portion being the same as that of the first knurled portion;
• a cap rotatably connected to the rotary member and having an opening in a first end thereof, a first room being a circular room defined in the cap, a second room defined in the cap and communicating with the first room, the second room being a circular room and located at the opening, an inner diameter of the second room being larger than that of the first room, the tube of the rotary member 40 extending through the second room and is engaged with the first room, a third recess defined in an inner end of the first room and located corresponding to the second recess, a center of the third recess located within the first room, an inner diameter of the third recess being smaller the inner diameter of the first room, the first room located between the second room and the third recess, the cap having a first curved face defined in a distal end thereof, the first curved face being a spherical face;
• a bearing being shaped as a ring and mounted to the tube and accommodated in the second room, an inner periphery of the bearing fixed to the tube, an outer periphery of the bearing fixed to the second room, when the rotary member is rotated, the first part is co-rotated, and
• a second bead received in the second recess and the third recess.