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 with quick-release chuck: the Rapidaptor technology allows bits to be attached without any need to actuate the sleeve. The removal of the bit is simple, just by pushing the sleeve forward - for rapid bit change with just one hand. For the take-up of bits with ¼" hexagon head drive as per DIN ISO 1173-C 6.3. Can be inserted in the power screwdriver or for use in the chuck of the electric drill. Comes with tough viscous TORX® bits for universal use.