The Capri Tools Kontour™ Nut Drivers are forged from Chrome Vanadium steel to give you ultimate performance and durability. It is equipped with full length 3 in. long hollow shaft which works perfectly on both regular and long bolts. The Kontour™ handle is shaped to fit the curvature of you hand, giving you a powerful and ultra-comfortable grip. The Kontour™ handle is covered in alternating soft and hard layers, in a hybrid pattern designed to strike the perfect balance between high speed turning and high torque transfer, giving you a sure grip while letting you quickly shift in between turns. Anti-toll design helps the driver stay where you leave it and won’t roll away. Hanging hole at the top the handle lets you use standard hooks for organization and storage.