Robust Bit-Check by Wera. Bit-Checks provide a quick overview of the tools available. Bits not needed are simply reinserted into the set and do not get lost. Simple transportation e.g. in the shirt pocket. Includes universal holder for the take-up of bits with 1/4" hexagon head drive as per DIN ISO 1173-C 6.3. Quick-release chuck for rapid bit change. Comes with TORX BO bits for secure fastening; for universal use.Features and Benefits• Upright positionable Bit-Checks convince due to their functionality in a minimum of space• Universal holder with quick-release chuck for rapid bit change• Tough viscous bits for universal use• In handy and robust Bit-Check• Provides a quick overview of the tools availableContents1x Bit-Check 7 TX BO Universal 1, 7 pieces; 1x 894/4/1 K Universal Bit Holder, 1/4" x 51 mm; 6x 867/1 Z TORX® BO bits with bore hole: TX 10x25, TX 15x25, TX 20x25, TX 25x25, TX 30x25, TX 40x25