Wera Tools - Bit-Check 30 Universal 129 bits in a minimum of space; simple removal and reinsertion of the bits. Rapidaptor holder ensures rapid bit change. Universal bits fitted for diverse applications; robust Bit Check. Features Upright positionable, multi component Bit Check Rapidaptor holder for rapid bit change Universal bits for all fields of application Rapidaptor technology for rapid bit change Tough viscous bits for universal use Data Sheet (PDF)