Teng 3892AG-E1 Torque Wrench Angular Gauge 5-25nm 3/8in Drive Torque wrench with flip reverse ratchet action, & Nm & ft.lb reference scales. Manufactured to conform to BS 6703/88. The unique angular gauge, for use after tightening stretch bolts, allows bolts to be tightened over & above a pre-set torque rating by so many degrees, e.g. 45