Pawl control mechanism for a ratchet tool

A ratchet tool comprising:

• a head having a hole defined through and a gear wheel rotatably received in the hole, a recess defined in an inner periphery of the hole and a pawl received in the recess, the pawl having a toothed surface in a first end thereof and the toothed surface matched with a toothed outer periphery of the gear wheel, two convex portions extending from two ends of a second end of the pawl, and
• a chamber defined in a side of the head and a switch pivotably received in the chamber, the recess being in communication with the chamber and located at a mediate portion of a depth of the chamber in the head, the switch having an insertion which is pivotably received in the chamber, an operation plate located on an end of the insertion and being accessible form an outside of the head, each one of two ends of the operation plate being pushed toward the chamber to pivot the insertion, two holes defined in the insertion and located from a distance from the recess when the switch is not pivoted, each hole in the insertion having a pushing member and a spring received therein, the pushing member being biased by the spring and being sized to be received in the hole by an inside of the chamber, the two pushing members being alternatively shifted to a position in alignment with one of the convex portions of the pawl and pushing one of the convex portions of the pawl toward the gear wheel.