Norbar 11087 Torque Wrench, 3/8" Ratchet, Adjustable, 4-20 N.M/40-180 LBF.IN; Model SL0 Plastic Knob The SL0 Torque Wrench is the smallest wrench in our 'Slimline' range, with a range of 4 - 20 N.m (40 - 180 lbf.in) . Features: Accuracy exceeds all international standards Fixed head version has a push through square for left and right handed torque tightening High quality 72 tooth ratchet allows use in confined spaces Production 'P' Type versions designed to discourage unauthorised alteration Torque Handle versions, both 16mm spigot and 9 x 12mm female Traceable calibration certificate supplied to satisfy ISO 9000 quality systems Unmistakable signal when set torque is reached Comes with: Plastic storage case Calibration certificate Specification: Length: 220 mm Ratchet Teeth: 72 Ratchet Type: reversible Square Size: 3/8" Torque Radius: 144 mm Product's Accuracy: +/- 4% Operates between: 4 - 20 N.m 40 - 180 lbf.in Weight: 0.4 Kg