Particularly handy due to its short design. Universally applicable with a socket for insert tools. Accuracy ± 2 % (6391-10: 6 %) of the set value (in the direction of operation). Usable for right and left threads by rotating the insert tool. Plug connection for the reception of insert tools. Fixed adjustable value. Especially suitable for use in industrial mass production. Setting the desired torque value with combination wrench 6399 in conjunction with HAZET testing device 7901E, 7902E, 7903E, or another suitable device. All wrenches in this series (HAZET 6391-6392) do not have an adjustment scale. Comes with a calibration certificate and serial number. DIN EN ISO 6789-2:2017. Made in Germany. Output: Insert square 9 x 12 mm. Dimensions / Length: 124 mm. Net weight: 0.15 kg. Nm min-max: 2 - 12 Nm. Tolerance: 2 %. Effective length of the torque wrench min-max l1 mm: 121.00 - 121.00 Nm. Operating force min-max kg: 1.7 - 10.1 kg. Dimension of the adjustment tool l2: 19.5 mm. Head thickness a: 17 mm. Head width b: 22 mm. No more backing off: In long-term durability tests, it has been proven that there is no need to back off to the smallest scale value for HAZET torque wrenches of the 5000 and 6000 series.