psc tool holder
In precision CNC machining, the tool holding system is one of the most important factors affecting part quality, cycle time, and overall production efficiency. Among the tooling solutions gaining traction in industry conversations and Google search trends are PSC (Polygonal Shank Coupling) tool holders. Topics like ISO 26623 tooling standard, PSC vs Capto comparison, tool holder repeatability, and quick change tooling systems all point to growing interest in tooling solutions that offer high rigidity, modularity, and repeatable accuracy.
In this article, we’ll explain what PSC tool holders are, why they matter in modern machining, how they work, and answer frequently asked questions — including a look at the PSC Tool Holder Series from XiRay Tools.
🔍 What Is a PSC Tool Holder?
A PSC tool holder is a tooling interface standardized under ISO 26623 that uses a polygonal tapered shank with flange face contact to mount the tool holder to the machine spindle.
Unlike conventional holders that rely only on taper contact, PSC holders engage both the polygonal taper and face surface contact, delivering:
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✔ High rigidity and vibration resistance
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✔ Superior torque transmission
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✔ Micron‑level repeatability
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✔ Fast modular tool change capability
This dual‑contact design makes PSC tool holders ideal for demanding CNC applications where precision and rigidity are critical — including turn‑mill centers, multitasking machines, and high‑precision production lines.
