Here’s another example of another innovative product from Elesa! CTD wing knobs are used when the applied tightening torque must not exceed a preset value. These are ideal for applications where over-tightening could result in damage or premature wear of components! Using these wing knobs is just like any other knob- tighten by turning clockwise as usual. When the preset torque is reached, you’ll hear a “click”! To loosen, turn the knob counterclockwise. No adjustment or calibration is necessary! Want to learn more about this unique product? Use our handy Contact Form to reach us!