Using the Klein 65160 nut driver set is easy. Just pick the right size nut driver for your job, grip the cushion handle firmly, and start turning. The Tip-Ident® feature helps you quickly find the right tool. When using it on long bolts or studs, the set's design allows it to fit well. For stacked circuit boards, the full hollow shafts come in handy. As for maintenance, keep the chrome-plated shafts clean to maintain their corrosion resistance. Wipe them down after use. Avoid using excessive force that could damage the internal flanges. Also, store the set in a dry place to prevent rusting. The color-coded handle end helps you quickly put each tool back in its place, making organization a breeze.