The Milwaukee SAE Hollow Shaft Nut Driver Set 7pc 48-22-2407 is a high-quality hand tool set designed for professional use. With a star size of 8-point and a drive type of hex and square/Robertson, this driver set is perfect for fastening and loosening nuts and bolts with ease. Made of durable steel and featuring a cushion grip handle for comfort, this set is ideal for automotive and industrial applications. Additionally, the magnetic feature and insulated design make it safe and convenient for use in various settings. The limited lifetime warranty ensures long-lasting performance and reliability.