Adjustable ratchet wrench

An adjustable ratchet wrench, comprising:

• a wrench body having a head portion and a handle portion, the head portion comprising a first housing space and a second housing space connected with the first housing space, the first housing space provided with a rotation axis;
• a ratchet rotatably disposed in the first housing space around the rotation axis, a plurality of ratchet teeth disposed at an outer periphery of the ratchet, a fixed clamp portion disposed at an inner periphery of the ratchet;
• two positioning members disposed at two sides of the inner periphery of the ratchet, respectively;
• a movable device disposed at the inner periphery of the ratchet and between the two positioning members, the movable device comprising a movable clamp portion, a tool receiving hole formed between the movable clamp portion and the fixed clamp portion for receiving a workpiece, the movable device being switched among a first status, a second status, and a third status;
• in the first status, the movable device is engaged with the two positioning members;
• in the second status, the movable device moves with respect to the two positioning members along a direction in parallel to the rotation axis;
• in the third status, the movable device slides with respect to the two positioning members along a direction in vertical to the rotation axis for adjusting a size of the tool receiving hole;
• and
• a restoring device disposed between the movable device and the ratchet, the restoring device enabling the movable device to be switched from the second status to the first status.