The Klein 89904 is a 7-piece nut driver that comes in a set. These nut drivers are designed to loosening and tightening nuts and bolts. It has a shaft that comes in chrome finish for added resistance against corrosion. It also features a color-coded handle for easy identification. The set includes Klein S66, S86, S106, S116, S126, S146, and S166 nut drivers. Klein Tools is the world leader in the design and production of high-quality and commercial-grade tools. In cooperation with Klein Tools, we at PlumbersStock carry high-quality and reliable products for a very affordable price. Grab yours now here at PlumbersStock.