Patent ID: 8544365

Claim:
A ratchet tool comprising: a housing including an annular sidewall having an internal surface; a closed bottom; an open top; a chamber defined between the annular sidewall, the closed bottom and the open top; and multiple locking grooves formed in the internal surface of the annular sidewall and the open top; a ratchet mechanism mounted through the housing and including a cylindrical member rotatably received in the housing and having a base received in the chamber of the housing and having an upper surface and a height being less than a height of the chamber of the housing; and a shaft formed on and protruding from the upper surface of the base; a driving stem secured to the base of the cylindrical member; and a clutch assembly mounted in the base of the cylindrical member adjacent to the driving stem; and a locking plate mounted in the chamber of the housing and having a central hole mounted around the shaft of the cylindrical member of the ratchet mechanism; multiple wings protruding from a periphery of the locking plate and corresponding to and engaging the locking grooves of the housing; and a height being less than a difference in height between the chamber of the housing and the base of the cylindrical member of the ratchet mechanism.