Wera 851/0 Screwdriver Bits for Phillips screws (PH 00 x 30 mm). This is a small screwdriver bit with a blade length of 30 mm and a 4 mm handle. This bit has been designed for precise engagement with Phillips screws, reducing the likelihood of the screwdriver slipping and improving durability. It is suitable for precision electronics, electrical work, and general small fastening tasks. The material is durable with a hard finish, suitable for universal use. The sales unit is one piece.