The Norbar Model 5 Torque Wrench is highly accurate with interchangeable 14in hexagon bits ISO 11731988 Form C drive bits The Model 5 is non-length dependent and remains accurate regardless of hand position Supplied in a storage case that allows space for the storage of additional drive bits and optional stepless ratchet Supplied with a declaration of conformance to ISO 67892017 Specification Drive 14in Female Square Range 1-5Nm Torque Radius 1016mm Ratchet Teeth None Ratchet Type Stepless Length 170mm Weight 012kg