Rundown fixtures assist in testing the output of pulse, stall, and clutch power tools. Neither SR testers nor rundown fixtures are designed, engineered, or suited for impact tools. Testing impact tools on SR equipment can damage the torque tester and immediately voids the warranty.

Testing pulse and clutch power tools are accomplished by allowing the tool to achieve rotational speed prior to torque measurement. The rundown fixtures all include components to emulate either a hard or medium joint, thus assuring greater test accuracy.

The rundown fixtures work with Torq-Tronics 2 (+/- .5% Indicated Value) and the new System 8 (+/- .25% Indicated Value) Digital Torque Testers.