Wera 897/4 R BiTorsion Rapidaptor, Universal Bit Holder 1/4" Wera's BiTorsion Rapidaptor Universal Bit Holder is designed for rapid bit changes. Rapidaptor allows for quick one-handed bit change for both insert and power bits. Bits are easily inserted with press-in and self locking mechanism that holds bit securely and wobble free. Free-spinning outer sleeve stabilizes tool during screwdriving process, easily applying tool to screw to prevent slipping. The BiTorsion tools have special tempered torsion zones that absorb peak loads when being used with power tools; preventing premature breakages, extending the service life of the tool. Fits all 1/4" DIN 3126-C 6.3 and E 6.3 bits and Wera Series 1 and 4. Features Wera's Rapidaptor easy in, easy out, rapid spin, chuck all and single hand technology, with BiTorsion design, 1/4" x 75mm shaft Allows for quick one-handed bit exchange for both insert and power bits Bits are easily inserted with press-in and self-locking mechanism Free-spinning outer sleeve stabilizes power tool during screwdriving Manufacturer Part #: 05053923001 Sorry, your browser doesn't support HTML5 media.