Description Micron precise! To 0.000 mm in next to no time The TENDOzero hydraulic expansion toolholder is the professional toolholder for tight tolerances for boring, reaming, and drill-finishing – or wherever perfect run-out accuracy is a must. This enables even minimal concentricity errors with tools, mountings, and the machine spindles to be individually compensated. Field of application For reaming and exact Drilling Advantages – Your benefits - Permanent run-out accuracy can be adjusted to 0.000 m for optimal shape and positional tolerances. This assures best surface results due to a uniform cutting action and highest reproducibility. - Perfect vibration damping for up to 50% longer tool life. Prevents the machine spindle from damage. - Tool changes in seconds without peripheral equipment. Easy handling. Turn in the actuation screw with an Allen key to the dead stop. The clamping results without the need for additional peripheral equipment. - Precision balanced as standard with a balancing grade G2,5 at 25,000 rpm. Prevents the machine spindle from damage. - Broad compatibility. All commercially available shank types can be clamped (best results with cylindrical shanks h6 tolerances).