The Wiha slimBit electric bits have been been specially developed for electrical applications, individually tested as per the international IEC 60900 standard. Providing users with a tool to work safely on live parts up to 1,000 V AC. Wiha slimTECHNOLOGY means that blades are up to 33% slimmer. This means low-lying screw and spring elements can be easily reached.slimBits can only be used with speedE, slimVario or TorqueVario-S electric tools. This 7 Piece Set contains the following: 6 x TORX slimBit electric Blades: T8 x 75mm, T9 x 75mm, T10 x 75mm, T15 x 75mm, T20 x 75mm & T25 x 75mm. 1 x slimBit box for easy storage of slimBits, whilst providing an optimum view of the screw profiles.