Large scale window with unit. Unit (Nm) with vernier. At all times only one unit in the viewing area, avoids reading errors Automatic actuation: The BOXO-Torque Wrench - TWM2 actuates with a clear tactile impulse and audible signal and is immediately ready for operation again Robust steel tube: With high corrosion protection, chromeplated, satin chrome plated Window for fine adjustments of 1 Nm, allows very accurate settings Ergonomic anti slip soft grip handle Classified to DIN EN ISO 6789:2003 Type II Class A, with a factory certificate allowing for operations to be traced back. Calibrated to a +/- 3 % tolerence of the adusted value Serial number on the wrench and on the certificate for product identification and traceability With 3/8" and 1/2" square drive and integrated reversible ratchet function for controlled clockwise tightening For the BOXO Torque Wrench TWM2: Switch the lever of the reversible ratchet to correspond with the desired direction, clockwise or counter-clockwise Concealed setting drill hole, for secured adjusting/ setting system