Precision screwdriver slotted 4mm; bi-component ergonomically designed handle with swivel cap. Driver length: 150mm. Total length: 250mm. Manufactured from chrome-molybdenum steel with a satin finish and precisely ground hardened black tip to ensure exact fit. The handle is made from a bi-component engineered nylon plastic to provide superior comfort and grip. It also features a swivel cap for ease of use and precise control. Size of tip is also imprinted on the handle for easy selection.