Wiha 28504 TorqueVario-S Torque Screwdriver, 7.5-20 Inch Pound;

Adjustable TorqueVario Handle with Direct Reading Scale 7.5 - 20 In-lbs (SAE) Comes with Adjustment Tool and 4mm bit adapter Molded cushion grip two component handles allow for maximum achievable torque to be reached with comfort Precise repeatability! Each tool has unique serial number and certificate of calibration +/-6% accuracy tolerance Audible and perceptible click when the torque setting has been attained, automatically resets for next torque cycle. Overall length / OAL: 126 mm (4.0")Compatible Blades with Phillips tips, Slotted tips, Torx tips, and more. Adaptor Blades, if you would like to use bits or sockets