CRKT ToGo Driver 99143. 5" overall. Textured anodized aluminum handle unscrews into two pieces, revealing an internal compartment that securely holds seven precision Wiha 4mm micro bits and a 1 4" to 4mm bit adapter. A ball bearing spinner ensures smooth, controlled turns for quick takedowns or reassembly, while a magnetic driver tip keeps bits locked in place until the job is done. Includes T6, T8, T10, T15, T20 Torx bits, 3. 5mm slot head and Philips head bits, and 1 4"