| 摘要 |
The present invention discloses a ratchet wrench, which comprises a main body, a D-head, a threaded portion, a loose ratchet, a cardioid spring having extension leg and a closed tip, a rotatable disc having a shouldered hole with a first penetrating hole and a second penetrating hole connected by a connecting hole, and a ring. The rotatable disc is disposed on the head portion of the main body with the threaded portion of the D-head moving from the second penetrating hole and finally extending through the first penetrating hole, and a shift pin is defined at the bottom of the rotatable disc locating in the internal of the closed tip of the cardioid spring. The ring is disposed in the shouldered hole and threadedly engaged with the threaded portion so that the D-head rotatably positioned in the through bore of the main body.
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