Standard Pack = 1 piece(s). ESD Safe Adjustable TorqueVario-S with Window Scale. 15-80 In/oz. 2.5 In/oz. increments. 5 IN /127mm OAL. Ergonomic multi-component handle, light and compact. Handle Sizes proportioned to optimize torque range. Audible & perceptible click when torque setting has been attained. With certificate of accuracy. +/- 10% Accuracy.