The bolts that hold the discs at the end of the rod have no stop on the threads that would allow the disc to rotate once the bolt is tightened. So if you roll it over the shaft it loosens the screw. I used it twice before losing one of the drives.
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
π Dioxide Controller for Digital Gas Monitoring
5 Review
π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review