QuickFlex® 1 The perfect combination: ER collet chuck and quick change system in one toolholder. 3 4 2 5 6 2 1 – Toolholder 7 2 – QuickFlex® chuck 3 – Collet 11 4 – Collet nut 5 – QuickFlex® adapter 6 – One-hand wrench (patent-registered) 7 – Thread for QuickFlex® adapter and collet nut 8 – Short taper for radial centering and axial support of the QuickFlex® adapter 9 – Taper of the ER collet chuck 10 – Polygonal torque transmission for QuickFlex® adapter 11 – Radial bending support of the QuickFlex® adapter for high stiffness under load 9 10 8 4