SlimVario VDE interchangeable bit VDE interchangeable bit. These slimVario® bits are compatible with Wiha VDE torque, slimVario and Lift-up magazine screwdrivers. Featuring SoftFinish and fully integrated insulation to reduce the blade diameter. Ensuring safety for controlled fastening on live parts of up to 1000 V. Features and Benefits • SlimBit
• Integrated protective insulation
• VDE Certified up to 1000 V