Standard Pack = 1 piece(s). Insulated Adjustable TorqueVario-S with Window Scale Handle. 10-50 In/lbs. 2 In/lbs. Increments. 5.4 IN /138mm OAL. Ergonomic multi-component handle, light and compact. 1000Volt Rated. Handle Sizes proportioned to optimize torque range. Audible & perceptible click when torque setting has been attained. With certificate of calibration. +/- 6% Accuracy. (Includes Adjustment Tool And SlimLine Blade Holder)