An Airhead spline lube is a necessary maintenance task. It is covered extensively in some of the online articles listed below. It’s actually a fairly easy job, and there are several good articles (see ...

Using the British Standard, we tested each set's 10mm socket to 1.5 times the required limit - around 85lb/ft. The extension and ratchet were taken to just over 122lb/ft. We looked for a range of ...