Electronic torque wrench with a rotatable display unit

An electronic torque wrench comprising:

• a wrench head adapted to engage and turn a fastener about a torque axis;
• a joint segment extending radially from said wrench head relative to the torque axis for mounting a strain gauge thereon;
• a tubular first wrench body which extends along a lengthwise axis and which includes a front tubular end fittingly engaged and secured with said joint segment, and a rear tubular end opposite to said front tubular end;
• a tubular second wrench body which is disposed rearwardly of and which is aligned with said rear tubular end along the lengthwise axis, and which includes front and rear tubular portions opposite to each other;
• a fitting member disposed to couple said rear tubular end of said first wrench body with said front tubular portion of said second wrench body to permit rotation of said second wrench body relative to said rear tubular end about the lengthwise axis, and to permit said first wrench body to transmit a torque applied on said rear tubular portion to said wrench head;
• a mounting shell which is sleeved on said front tubular portion;
• and
• a display unit disposed on said mounting shell to provide a display representing a torque measured by the strain gauge.