The full hollow shaft design facilitates work on stacked circuit boards or other long bolt or stud applications. Kleins' exclusive Cushion-Grip handle offers greater torque and outstanding comfort. The patented Tip- Ident® quickly identifies nut driver and size.PRODUCT FEATURES:- Reaches into deep recesses - Fits over extra-long bolts and studs - Full hollow shafts facilitate work on stacked circuit boards or other long bolt applications - Internal flanges provide solid, twist-resistant shaft anchor - Premium chrome plated for smooth feel and corrosion resistance - Meets or exceeds applicable ASME / ANSI specifications - Handle end is also color coded for easy identification - Cushion-Grip handle allows for greater torque and comfort - Tip-Ident quickly identifies nut driver and size