The 01398 Electronic Part by Wiha International is a hexagon key with a spherical end. It is made of high quality alloy steel for strength and durable operation. The hexagonal key measures 4mm across and has an overall length of 142mm. It is equipped with precision-milled tips for an exact fit. This part is designed to be used with all common electronic equipment with their hex screws and nuts. The key is also suitable for use with precision machine screws and nuts. It features a soft, comfortable handle for easy gripping and is color-coded for quick recognition.