Torque wrench

The invention provides a torque wrench which comprises a body and a measuring device, the body comprises a head portion and a rod portion, one end of the rod portion is connected to the head portion, the measuring device comprises a strain gauge seat and a strain gauge, the strain gauge seat is arranged in the rod portion, and the strain gauge seat is arranged in the rod portion. The strain gauge seat is provided with a first groove and a deformation part adjacent to the first groove, the strain gauge is connected to the deformation part, and the wrench can enable torsion data measured by the measuring device to be accurate through the structure. 本发明提供一种扭力扳手，包括有一个本体及一个测量装置，本体包括有一个头部及一个杆部，杆部的一端连接于头部，测量装置包括有一个应变规座及一个应变规，应变规座设置于杆部内，应变规座设置有一个第一凹槽及与第一凹槽相邻的一个变形部，应变规连接于变形部，扳手通过上述结构可使测量装置测得的扭力数据准确。