HandleTorque infinitely adjustable with Torque-Setter setting tool (also supplied).Ergonomic multi-component handle, particulary light and compact.Handle sizes proportioned to optimise torque setting.Audible and perceptible click when the pre-set torque has been attained.Compatible with all blades of the 2859.MaterialCompatible with all blades of the 2859.StandardsDIN EN ISO 6789.Accuracy±6%, tracing to national standards (see table for other tolerances).ApplicationFor applications where recommended torque settings are important. Use in combination with a Wiha torque interchangeable blade.NoteBit holders or blades are not included in delivery.