The Wiha GoBox 36 Piece Precision Micro Bit set contains Slotted, Phillips, Hex, Torx, Pentalobe, Standoff, and Y Type Micro Bits. The PicoFinish Micro Bit handle 3.9in/100mm has a finger control rotating cap for rapid rotation, and an extra long cap for optimal hand positions and smooth turning. Wiha Micro Bits consists of premium quality tool steel for strength and feature exact fit precision machined tips for reduced cam out and have a 4mm hex drive. The complete compact Micro Bit set comes conveniently stored in a small metal case that fits in your pocket for easy portability.