Norbar 13001 Model 5 Female Torque Wrench 1/4 Inch Hex 1 - 5 Nm The Norbar 13001 Model 5 is a unique torque wrench offering high accuracy of 6%. With the convenience of interchangeable 1/4 inch hexagon bits and measures only 170mm in length. (ISO 1173:2001 Form C drive bits) . Features: Non Length dependent. The Model 5 remains accurate regardless of hand position Supplied in a storage case. The case allows space for the storage of additional drive bits, and optional stepless ratchet Supplied with a Declaration of Conformance, which meets the requirements of ISO 6789-1:2017 Specification: NATO number: 5120-99-313-3843 Accuracy: 6% Operates between: 1.00 - 5.00 Nm (0.10 Increment) Length: 170 mm Square Size: 1/4" Female Hexagon Torque Radius: 101.6 mm Weight: 0.12 Kg Ratchet Teeth: none Ratchet Type: stepless