Floating tap holders with extension and compression and Morse taper shank represent an advanced technical solution for threading operations on machine tools. They are designed to ensure high thread quality, process stability, and a significant reduction in tool breakage risk. They are particularly suitable for use on single-spindle and multi-spindle lathes, CNC machining centers, drilling machines, and transfer lines, where synchronization between feed and rotation is not always perfectly controlled.

The operating principle is based on a floating system with bidirectional axial compensation, allowing both extension and compression movements. The extension stroke (E = 12 mm) compensates differences between machine feed and thread pitch during cutting, preventing overload and improving thread consistency. The compression stroke (C = -4 mm) acts during reversal phases, absorbing stresses and reducing the risk of tool damage.

The system uses calibrated internal springs to allow controlled axial movement of the tap, while a slight radial play compensates misalignment between spindle axis and workpiece. This combination of axial and radial compensation reduces geometrical and form errors, improves thread quality, and ensures stable machining even under non-ideal conditions.

The compact design allows effective use in limited spaces while maintaining an optimal balance between structural rigidity and compensation capability. Different configurations (e.g., varying d1 diameters) enable adaptation to different tapping ranges and machining requirements.

From a construction standpoint, the tap holders are manufactured from certified high-alloy steel, heat-treated and fully ground to ensure wear resistance, geometric precision, and long-term dimensional stability. The entire production process is carried out in Italy using high-precision machine tools and strict quality control procedures.

These tap holders are widely used in automotive, industrial production, precision engineering, and subcontract machining. They are ideal for intensive production cycles where thread quality, reduced scrap, and extended tool life are critical factors.

Selection should consider the taper type (Morse taper), tool diameter, and operating conditions, especially in threading processes requiring synchronization compensation. Thanks to the bidirectional axial compensation, tap holders provide a reliable, versatile, and high-performance solution for technicians, CNC operators, and process engineers.