Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions

A ratcheting wrench comprising:

• a handle having an end, the end of the handle having a compartment;
• a head extending from the end of the handle and having a hole communicated with the compartment of the handle;
• a fastener-driving member adapted to drive a fastener;
• a drive member rotatably mounted in the hole of the head, the drive member formed as a unitary, unseparable component including a first end, a second end, an inner periphery and an outer periphery, with the inner and outer peripheries extending between the first and second ends, with the inner periphery securely, releasably holding the fastener-driving member, allowing joint rotation of the fastener-driving member and the drive member when the drive member is turned, the drive member further including a flange at one of the first and second ends of the outer periphery thereof and located outside the head for manual rotation of the drive member, the drive member further including a plurality of teeth on the outer periphery thereof;
• a ratcheting mechanism mounted in the compartment of the handle and engaged with the teeth of the drive member;
• an annular groove being defined in the inner periphery of the drive member;
• a fastener retainer being received in the annular groove for releasably holding the fastener-driving member in place;
• and
• a drive retainer removably retained on the outer periphery of the drive member, with the flange and the drive retainer preventing the drive member from falling out of the hole of the head.