We talk about ER nuts a lot, especially regarding how much clamping force a nut is able to facilitate through its surface coating or impregnation. However, one of the most common questions we get is regarding how the nut retains the collet. Improper assembly, as we've shown before, can quickly damage the nut, collet, and toolholder. In this week's video, David covers the most common types of ER nuts, how they work, and what to look for when torqueing them down.
