Wera Rapidaptor 889/4 Universal Quick Release Bit Holder 100mm WER052504 Application: For 1/4in DIN 3126-C 6,3 und E 6,3 (ISO 1173) hexagon insert bits and Wera Series 1 and 4 Design: Rapidaptor easy-in, easy-out, rapid-spin, chuck-all, and single-hand technology, with strong permanent magnet Capacity 1/4inShank 1/4in100 mm Length WER052504