Draper expert 12 square drive precision torque wrench 50 to 180nm draper expert 58540 the draper expert ratchet repair kit for 58138 58139 and 58140 has been specifically designed and equipped with reversible ratchet head and locking preset action torque values are viewed via a window in the handle range 50 180nm accuracy plusmn4 overall length 520mm full instruction manual and calibration certificate included with each torque wrench supplied in blow mould casemanufactured an