Kraftform Compact Micro Set for precision mechanical applications. Suitable for bits with a 4 mm half-moon drive (Wera Series 9) and bits with a 4 mm HIOS drive (Wera Series 21). Electrical surface resistance ≤ 10^9 Ohm for safe protection against electrostatic energy. Manufactured according to DIN EN 61340-5-1. Compact handle and interchangeable blade system for lightning-fast blade changes. Kraftform Micro handle with a rotating cap and quick-turn zone for rapid spinning, eliminating the need for time-consuming repositioning. Power zone with integrated soft zones for transferring high loosening and tightening moments. Precision zone directly above the blade for the correct torque angle during adjustment work. Bits suitable for manual and machine-operated screw fastening. Ultra-fast bit fixation: simply slide the bit into the holder, automatic locking, secure fit. To change the bit, just push the sleeve forward and remove the bit. Free-running actuation sleeve for easy guidance of the tool during the screwing process. Bits suitable for manual and machine-operated screw fastening with electric screwdrivers. Ideal for use on smartphones, mobile phones, cameras, and electronic devices, as well as in dental laboratories and dental practices.